Showing posts with label philosophy of science. Show all posts
Showing posts with label philosophy of science. Show all posts

Monday, May 30, 2011

Philosophy of social science today


A sign of arrival for a sub-discipline is the appearance of a handbook for the field. By that criterion, the philosophy of social science has passed an important threshold with the appearance of Ian Jarvie and Jesus Zamora-Bonilla's SAGE Handbook of the Philosophy of Social Sciences. The 750-page volume offers 37 main articles, as well as an extensive reflective introduction by Ian Jarvie and an epilogue by Jesus Zamora-Bonilla. A majority of the contributors are European, confirming an impression that the most active research networks in this field are currently in Western Europe. Germany and the Scandinavian countries are particularly well represented.

Ian Jarvie's extensive introduction does a good job of setting the stage for the volume. He is in a unique position to offer this perspective, having served as editor of the key journal Philosophy of the Social Sciences for many years. He begins by noting the heterogeneity of the field:
As a set of problems, the philosophy of the social sciences is wide-ranging, untidy, inter-disciplinary and constantly being reconfigured in response to new problems thrown up by developments in the social sciences; in short, disorderly. (1)
The orientation to the philosophy of social science represented in this volume is largely grounded in the analytic philosophy tradition. By this I mean an emphasis on rationality, an interest in generalizations and laws, a commitment to empirical methods of inquiry, and an over-arching preference for conceptual clarity. (Paul Roth describes the analytic approach in his contribution to the volume; 103ff.) But David Teira also offers an interesting contribution on "Continental Philosophies of the Social Sciences." He begins the article by writing,
In my view, there is no such thing as a continental philosophy of the social sciences. There is, at least, no consensual definition of what is precisely continental in any philosophical approach. (81)
Among these approaches he highlights Marxist, phenomenological and Foucauldian philosophies and theories of the social sciences. His finding is one that I agree with -- that one of the particularly valuable aspects of the continental traditions is the fact that thinkers in this tradition have offered large, insightful conceptual schemes for thinking about social life -- whether historical materialism, ethnomethodology, or the rhetoric of power. He writes, "I guess that if continental philosophies seem attractive to many social scientists, it is because they offer the prospect of a somewhat radical reconstruction of current research practices" (96).

Particularly interesting for me were contributions by Alban Bouvier ("Individualism, Collective Agency and The "Micro-Macro Relation"), Daniel Steel ("Causality, Causal Models, and Social Mechanisms"), Joan de Marti and Yves Zenou ("Social Networks"), Peter Hedstrom and Petri Ylikoski ("Analytical Sociology"), Chris Mantzavinos ("Institutions"), and Jeroen Van Bouwel and Erik Weber ("Explanation in the Social Sciences").

What is particularly valuable in this collection is the fact that most of the essays are not dogmatic in their adherence to a "school" of philosophical thought. Instead, they get down to the serious business of understanding the social world, and understanding what is involved in achieving a scientific understanding of that world. Chris Mantzavinos's essay, "Institutions," is a good example of this intellectual pragmatism. His contribution is a careful study of the new institutionalism and the variety of theoretical challenges that the concept of an institution raises. The essay is very well grounded in the current sociology and political science literatures on institutions, and it goes on to make substantively interesting points about these debates. "Only a theory of institutions that increases our information about the structure of social reality can provide us with the means of reorienting this reality in a direction that we find desirable" (408-9).

Many of the contributors -- probably the majority -- have taken seriously what I think is a particularly fundamental requirement for productive work in the philosophy of an area of science. This is the need for the philosopher to take up the particular theories and controversies of some current research in the social sciences as a framework and stimulus to their philosophical analysis. The philosopher needs to gain a significant level of expertise in a particular field of social science if his or her work is likely to find traction with conceptual issues that really matter. The topics for the philosophy of social science should not derive from apriori speculation about society; instead, they should be selected on the basis of careful engagement with serious empirical and theoretical attempts to explain the social world.

This is the kind of book that would benefit from a simultaneous digital edition. An affordable Kindle edition would help; but more radically, an online, hypertexted and cross-linked version would be fantastic. It would be fascinating to see a concept map linking the articles by theme or keyword; it would be illuminating to see some analysis of the patterns of citation across the articles in the volume; and it would be great for the reader to be able to click to some of the references directly. (Jarvie provides something like a map of themes in his tables representing "Principal Problems in Philosophy of the Social Sciences" and "Problematics in 14 Selected Anthologies"; 7-8.)



Philosophy of social science today


A sign of arrival for a sub-discipline is the appearance of a handbook for the field. By that criterion, the philosophy of social science has passed an important threshold with the appearance of Ian Jarvie and Jesus Zamora-Bonilla's SAGE Handbook of the Philosophy of Social Sciences. The 750-page volume offers 37 main articles, as well as an extensive reflective introduction by Ian Jarvie and an epilogue by Jesus Zamora-Bonilla. A majority of the contributors are European, confirming an impression that the most active research networks in this field are currently in Western Europe. Germany and the Scandinavian countries are particularly well represented.

Ian Jarvie's extensive introduction does a good job of setting the stage for the volume. He is in a unique position to offer this perspective, having served as editor of the key journal Philosophy of the Social Sciences for many years. He begins by noting the heterogeneity of the field:
As a set of problems, the philosophy of the social sciences is wide-ranging, untidy, inter-disciplinary and constantly being reconfigured in response to new problems thrown up by developments in the social sciences; in short, disorderly. (1)
The orientation to the philosophy of social science represented in this volume is largely grounded in the analytic philosophy tradition. By this I mean an emphasis on rationality, an interest in generalizations and laws, a commitment to empirical methods of inquiry, and an over-arching preference for conceptual clarity. (Paul Roth describes the analytic approach in his contribution to the volume; 103ff.) But David Teira also offers an interesting contribution on "Continental Philosophies of the Social Sciences." He begins the article by writing,
In my view, there is no such thing as a continental philosophy of the social sciences. There is, at least, no consensual definition of what is precisely continental in any philosophical approach. (81)
Among these approaches he highlights Marxist, phenomenological and Foucauldian philosophies and theories of the social sciences. His finding is one that I agree with -- that one of the particularly valuable aspects of the continental traditions is the fact that thinkers in this tradition have offered large, insightful conceptual schemes for thinking about social life -- whether historical materialism, ethnomethodology, or the rhetoric of power. He writes, "I guess that if continental philosophies seem attractive to many social scientists, it is because they offer the prospect of a somewhat radical reconstruction of current research practices" (96).

Particularly interesting for me were contributions by Alban Bouvier ("Individualism, Collective Agency and The "Micro-Macro Relation"), Daniel Steel ("Causality, Causal Models, and Social Mechanisms"), Joan de Marti and Yves Zenou ("Social Networks"), Peter Hedstrom and Petri Ylikoski ("Analytical Sociology"), Chris Mantzavinos ("Institutions"), and Jeroen Van Bouwel and Erik Weber ("Explanation in the Social Sciences").

What is particularly valuable in this collection is the fact that most of the essays are not dogmatic in their adherence to a "school" of philosophical thought. Instead, they get down to the serious business of understanding the social world, and understanding what is involved in achieving a scientific understanding of that world. Chris Mantzavinos's essay, "Institutions," is a good example of this intellectual pragmatism. His contribution is a careful study of the new institutionalism and the variety of theoretical challenges that the concept of an institution raises. The essay is very well grounded in the current sociology and political science literatures on institutions, and it goes on to make substantively interesting points about these debates. "Only a theory of institutions that increases our information about the structure of social reality can provide us with the means of reorienting this reality in a direction that we find desirable" (408-9).

Many of the contributors -- probably the majority -- have taken seriously what I think is a particularly fundamental requirement for productive work in the philosophy of an area of science. This is the need for the philosopher to take up the particular theories and controversies of some current research in the social sciences as a framework and stimulus to their philosophical analysis. The philosopher needs to gain a significant level of expertise in a particular field of social science if his or her work is likely to find traction with conceptual issues that really matter. The topics for the philosophy of social science should not derive from apriori speculation about society; instead, they should be selected on the basis of careful engagement with serious empirical and theoretical attempts to explain the social world.

This is the kind of book that would benefit from a simultaneous digital edition. An affordable Kindle edition would help; but more radically, an online, hypertexted and cross-linked version would be fantastic. It would be fascinating to see a concept map linking the articles by theme or keyword; it would be illuminating to see some analysis of the patterns of citation across the articles in the volume; and it would be great for the reader to be able to click to some of the references directly. (Jarvie provides something like a map of themes in his tables representing "Principal Problems in Philosophy of the Social Sciences" and "Problematics in 14 Selected Anthologies"; 7-8.)



Philosophy of social science today


A sign of arrival for a sub-discipline is the appearance of a handbook for the field. By that criterion, the philosophy of social science has passed an important threshold with the appearance of Ian Jarvie and Jesus Zamora-Bonilla's SAGE Handbook of the Philosophy of Social Sciences. The 750-page volume offers 37 main articles, as well as an extensive reflective introduction by Ian Jarvie and an epilogue by Jesus Zamora-Bonilla. A majority of the contributors are European, confirming an impression that the most active research networks in this field are currently in Western Europe. Germany and the Scandinavian countries are particularly well represented.

Ian Jarvie's extensive introduction does a good job of setting the stage for the volume. He is in a unique position to offer this perspective, having served as editor of the key journal Philosophy of the Social Sciences for many years. He begins by noting the heterogeneity of the field:
As a set of problems, the philosophy of the social sciences is wide-ranging, untidy, inter-disciplinary and constantly being reconfigured in response to new problems thrown up by developments in the social sciences; in short, disorderly. (1)
The orientation to the philosophy of social science represented in this volume is largely grounded in the analytic philosophy tradition. By this I mean an emphasis on rationality, an interest in generalizations and laws, a commitment to empirical methods of inquiry, and an over-arching preference for conceptual clarity. (Paul Roth describes the analytic approach in his contribution to the volume; 103ff.) But David Teira also offers an interesting contribution on "Continental Philosophies of the Social Sciences." He begins the article by writing,
In my view, there is no such thing as a continental philosophy of the social sciences. There is, at least, no consensual definition of what is precisely continental in any philosophical approach. (81)
Among these approaches he highlights Marxist, phenomenological and Foucauldian philosophies and theories of the social sciences. His finding is one that I agree with -- that one of the particularly valuable aspects of the continental traditions is the fact that thinkers in this tradition have offered large, insightful conceptual schemes for thinking about social life -- whether historical materialism, ethnomethodology, or the rhetoric of power. He writes, "I guess that if continental philosophies seem attractive to many social scientists, it is because they offer the prospect of a somewhat radical reconstruction of current research practices" (96).

Particularly interesting for me were contributions by Alban Bouvier ("Individualism, Collective Agency and The "Micro-Macro Relation"), Daniel Steel ("Causality, Causal Models, and Social Mechanisms"), Joan de Marti and Yves Zenou ("Social Networks"), Peter Hedstrom and Petri Ylikoski ("Analytical Sociology"), Chris Mantzavinos ("Institutions"), and Jeroen Van Bouwel and Erik Weber ("Explanation in the Social Sciences").

What is particularly valuable in this collection is the fact that most of the essays are not dogmatic in their adherence to a "school" of philosophical thought. Instead, they get down to the serious business of understanding the social world, and understanding what is involved in achieving a scientific understanding of that world. Chris Mantzavinos's essay, "Institutions," is a good example of this intellectual pragmatism. His contribution is a careful study of the new institutionalism and the variety of theoretical challenges that the concept of an institution raises. The essay is very well grounded in the current sociology and political science literatures on institutions, and it goes on to make substantively interesting points about these debates. "Only a theory of institutions that increases our information about the structure of social reality can provide us with the means of reorienting this reality in a direction that we find desirable" (408-9).

Many of the contributors -- probably the majority -- have taken seriously what I think is a particularly fundamental requirement for productive work in the philosophy of an area of science. This is the need for the philosopher to take up the particular theories and controversies of some current research in the social sciences as a framework and stimulus to their philosophical analysis. The philosopher needs to gain a significant level of expertise in a particular field of social science if his or her work is likely to find traction with conceptual issues that really matter. The topics for the philosophy of social science should not derive from apriori speculation about society; instead, they should be selected on the basis of careful engagement with serious empirical and theoretical attempts to explain the social world.

This is the kind of book that would benefit from a simultaneous digital edition. An affordable Kindle edition would help; but more radically, an online, hypertexted and cross-linked version would be fantastic. It would be fascinating to see a concept map linking the articles by theme or keyword; it would be illuminating to see some analysis of the patterns of citation across the articles in the volume; and it would be great for the reader to be able to click to some of the references directly. (Jarvie provides something like a map of themes in his tables representing "Principal Problems in Philosophy of the Social Sciences" and "Problematics in 14 Selected Anthologies"; 7-8.)



Friday, April 16, 2010

Feyerabend as artisanal scientist


I've generally found Paul Feyerabend's position on science to be a bit too extreme. Here is one provocative statement in the analytical index of Against Method:
Thus science is much closer to myth than a scientific philosophy is prepared to admit. It is one of the any forms of thought that have been developed by man, and not necessarily the best. It is conspicuous, noisy, and impudent, but it is inherently superior only for those who have already decided in favour of a certain ideology, or who have accepted it without having ever examined its advantages and its limits. And as the accepting and rejecting of ideologies should be left to the individual it follows that the separation of state and church must be supplemented by the separation of state and science, that most recent, most aggressive, and most dogmatic religious institution. Such a separation may be our only chance to achieve a humanity we are capable of, but have never fully realised.
Fundamentally my objection is that Feyerabend seems to leave no room at all for rationality in science: no scientific method, no grip for observation, and no force to scientific reasoning. A cartoon takeaway from his work is a slogan: science is just another language game, a rhetorical system, with no claim to rational force based on empirical study and reasoning.  Feyerabend seems to be the ultimate voice for the idea of relativism in knowledge systems -- much as Klamer and McCloskey seemed to argue with regard to economic theory in The Consequences of Economic Rhetoric.

This isn't a baseless misreading of Feyerabend. In fact, it isn't a bad paraphrase of Against Method. But it isn't the whole story either.  And at bottom, I don't think it is accurate to say that Feyerabend rejects the idea of scientific rationality.  Rather, he rejects one common interpretation of that notion: the view that scientific rationality can be reduced to a set of universal canons of investigation and justification, and that there is a neutral and universal set of standards of inference that decisively guide choice of scientific theories and hypotheses.  So I think it is better to understand Feyerabend as presenting an argument against a certain view in the philosophy of science rather than against science itself.

Instead, I now want to understand Feyerabend as holding something like this: that there is "reasoning" in scientific research, and this reasoning has a degree of rational credibility.  However, the reasoning that scientists do is always contextual and skilled, rather than universal and mechanical.  And it doesn't result in proofs and demonstrations, but rather a preponderance of reasons favoring one interpretation rather than another.  (Significantly, this approach to scientific justification sounds a bit like the view argued about sociological theories in an earlier posting.)

Here are a few reasons for thinking that Feyerabend endorses some notion of scientific rationality.

First, Feyerabend is a philosopher and historian of science who himself demonstrates a great deal of respect for empirical and historical detail.  The facts matter to Feyerabend, in his interpretation of the history of science.  He establishes his negative case with painstaking attention to the details of the history of science -- Newton, optics, quantum mechanics. This is itself a kind of empirical reasoning about the actual intellectual practices of working scientists. But if Feyerabend were genuinely skeptical of the enterprise of offering evidence in favor of claims, this work would be pointless.

Second, his own exposition of several scientific debates demonstrates a realist's commitment to the issues at stake. Take his discussion of the micro-mechanisms of reflection and light "rays". If there were in principle no way of evaluating alternative theories of these mechanisms, it would be pointless to consider the question. But actually, Feyerabend seems to reason on the assumption that one theory is better than another, given the preponderance of reasons provided by macro-observations and mathematical-physical specification of the hypotheses.

Third, he takes a moderate view on the relation between empirical observation and scientific theory in "How to Be a Good Empiricist":
The final reply to the question put in the title is therefore as follows. A good empiricist will not rest content with the theory that is in the centre of attention and with those tests of the theory which can be carried out in a direct manner. Knowing that the most fundamental and the most general criticism is the criticism produced with the help of alternatives, he will try to invent such alternatives. (102)
This passage is "moderate" in a specific sense: it doesn't give absolute priority to a given range of empirical facts; but neither does it dismiss the conditional epistemic weight of a body of observation.

So as a historian of science, Feyerabend seems to have no hesitation himself to engage in empirical reasoning and persuading, and he seems to grant a degree of locally compelling reasoning in the context of specific physical disputes.  And he appears to presuppose a degree of epistemic importance -- always contestable -- for a body of scientific observation and discovery.

What he seems most antagonistic to is the positivistic idea of a universal scientific method -- a set of formally specified rules that guide research and the evaluation of theories. Here is how he puts the point in "On the Limited Validity of Methodological Rules" (collected in Knowledge, Science and Relativism). 
It is indubitable that the application of clear, well-defined, and above all 'rational' rules occasionally leads to results. A vast number of discoveries owe their existence to the systematic procedures of their discoverers. But from that, it does not follow that there are rules which must be obeyed for every cognitive act and every scientific investigation. On the contrary, it is totally improbable that there is such a system of rules, such a logic of scientific discovery, which permeates all reasoning without obstructing it in any way. The world in which we live is very complex. Its laws do not lay open to us, rather they present themselves in diverse disguises (astronomy, atomic physics, theology, psychology, physiology, and the like). Countless prejudices find their way into every scientific action, making them possible in the first place. It is thus to be expected that every rule, even the most 'fundamental', will only be successful in a limited domain, and that the forced application of the rule outside of its domain must obstruct research and perhaps even bring it to stagnation. This will be illustrated by the following examples. (138)
It is the attainability of a universal, formal philosophy of science that irritates him. Instead, he seems to basically be advocating for a limited and conditioned form of local rationality -- not a set of universal maxims but a set of variable but locally justifiable practices. The scientist is an artisan rather than a machinist.  Here is a passage from the concluding chapter of Against Method:
The idea that science can, and should, be run according to fixed and universal rules, is both unrealistic and pernicious. It is unrealistic, for it takes too simple a view of the talents of man and of the circumstances which encourage, or cause, their development. And it is pernicious, for the attempt to enforce the rules is bound to increase our professional qualifications at the expense of our humanity. In addition, the idea is detrimental to science, for it neglects the complex physical and historical conditions which influence scientific change. It makes our science less adaptable and more dogmatic: every methodological rule is associated with cosmological assumptions, so that using the rule we take it for granted that the assumptions are correct. Naive falsificationism takes it for granted that the laws of nature are manifest and not hidden beneath disturbances of considerable magnitude. Empiricism takes it for granted that sense experience is a better mirror of the world than pure thought. Praise of argument takes it for granted that the artifices of Reason give better results than the unchecked play of our emotions. Such assumptions may be perfectly plausible and even true. Still, one should occasionally put them to a test. Putting them to a test means that we stop using the methodology associated with them, start doing science in a different way and see what happens. Case studies such as those reported in the preceding chapters show that such tests occur all the time, and that they speak against the universal validity of any rule. All methodologies have their limitations and the only 'rule' that survives is 'anything goes'.
His most basic conclusion is epistemic anarchism, expressed in the "anything goes" slogan, but without the apparent relativism suggested by the phrase: there is no "organon," no "inductive logic," and no "Scientific Method" that guides the creation and validation of science.  But scientists do often succeed in learning and defending important truths about nature nonetheless.

(Here is an online version of the analytical contents and concluding chapter of Against Method.  And here is a link to an article by John Preston on Feyerabend in the Stanford Encyclopedia of Philosophy.)

Feyerabend as artisanal scientist


I've generally found Paul Feyerabend's position on science to be a bit too extreme. Here is one provocative statement in the analytical index of Against Method:
Thus science is much closer to myth than a scientific philosophy is prepared to admit. It is one of the any forms of thought that have been developed by man, and not necessarily the best. It is conspicuous, noisy, and impudent, but it is inherently superior only for those who have already decided in favour of a certain ideology, or who have accepted it without having ever examined its advantages and its limits. And as the accepting and rejecting of ideologies should be left to the individual it follows that the separation of state and church must be supplemented by the separation of state and science, that most recent, most aggressive, and most dogmatic religious institution. Such a separation may be our only chance to achieve a humanity we are capable of, but have never fully realised.
Fundamentally my objection is that Feyerabend seems to leave no room at all for rationality in science: no scientific method, no grip for observation, and no force to scientific reasoning. A cartoon takeaway from his work is a slogan: science is just another language game, a rhetorical system, with no claim to rational force based on empirical study and reasoning.  Feyerabend seems to be the ultimate voice for the idea of relativism in knowledge systems -- much as Klamer and McCloskey seemed to argue with regard to economic theory in The Consequences of Economic Rhetoric.

This isn't a baseless misreading of Feyerabend. In fact, it isn't a bad paraphrase of Against Method. But it isn't the whole story either.  And at bottom, I don't think it is accurate to say that Feyerabend rejects the idea of scientific rationality.  Rather, he rejects one common interpretation of that notion: the view that scientific rationality can be reduced to a set of universal canons of investigation and justification, and that there is a neutral and universal set of standards of inference that decisively guide choice of scientific theories and hypotheses.  So I think it is better to understand Feyerabend as presenting an argument against a certain view in the philosophy of science rather than against science itself.

Instead, I now want to understand Feyerabend as holding something like this: that there is "reasoning" in scientific research, and this reasoning has a degree of rational credibility.  However, the reasoning that scientists do is always contextual and skilled, rather than universal and mechanical.  And it doesn't result in proofs and demonstrations, but rather a preponderance of reasons favoring one interpretation rather than another.  (Significantly, this approach to scientific justification sounds a bit like the view argued about sociological theories in an earlier posting.)

Here are a few reasons for thinking that Feyerabend endorses some notion of scientific rationality.

First, Feyerabend is a philosopher and historian of science who himself demonstrates a great deal of respect for empirical and historical detail.  The facts matter to Feyerabend, in his interpretation of the history of science.  He establishes his negative case with painstaking attention to the details of the history of science -- Newton, optics, quantum mechanics. This is itself a kind of empirical reasoning about the actual intellectual practices of working scientists. But if Feyerabend were genuinely skeptical of the enterprise of offering evidence in favor of claims, this work would be pointless.

Second, his own exposition of several scientific debates demonstrates a realist's commitment to the issues at stake. Take his discussion of the micro-mechanisms of reflection and light "rays". If there were in principle no way of evaluating alternative theories of these mechanisms, it would be pointless to consider the question. But actually, Feyerabend seems to reason on the assumption that one theory is better than another, given the preponderance of reasons provided by macro-observations and mathematical-physical specification of the hypotheses.

Third, he takes a moderate view on the relation between empirical observation and scientific theory in "How to Be a Good Empiricist":
The final reply to the question put in the title is therefore as follows. A good empiricist will not rest content with the theory that is in the centre of attention and with those tests of the theory which can be carried out in a direct manner. Knowing that the most fundamental and the most general criticism is the criticism produced with the help of alternatives, he will try to invent such alternatives. (102)
This passage is "moderate" in a specific sense: it doesn't give absolute priority to a given range of empirical facts; but neither does it dismiss the conditional epistemic weight of a body of observation.

So as a historian of science, Feyerabend seems to have no hesitation himself to engage in empirical reasoning and persuading, and he seems to grant a degree of locally compelling reasoning in the context of specific physical disputes.  And he appears to presuppose a degree of epistemic importance -- always contestable -- for a body of scientific observation and discovery.

What he seems most antagonistic to is the positivistic idea of a universal scientific method -- a set of formally specified rules that guide research and the evaluation of theories. Here is how he puts the point in "On the Limited Validity of Methodological Rules" (collected in Knowledge, Science and Relativism). 
It is indubitable that the application of clear, well-defined, and above all 'rational' rules occasionally leads to results. A vast number of discoveries owe their existence to the systematic procedures of their discoverers. But from that, it does not follow that there are rules which must be obeyed for every cognitive act and every scientific investigation. On the contrary, it is totally improbable that there is such a system of rules, such a logic of scientific discovery, which permeates all reasoning without obstructing it in any way. The world in which we live is very complex. Its laws do not lay open to us, rather they present themselves in diverse disguises (astronomy, atomic physics, theology, psychology, physiology, and the like). Countless prejudices find their way into every scientific action, making them possible in the first place. It is thus to be expected that every rule, even the most 'fundamental', will only be successful in a limited domain, and that the forced application of the rule outside of its domain must obstruct research and perhaps even bring it to stagnation. This will be illustrated by the following examples. (138)
It is the attainability of a universal, formal philosophy of science that irritates him. Instead, he seems to basically be advocating for a limited and conditioned form of local rationality -- not a set of universal maxims but a set of variable but locally justifiable practices. The scientist is an artisan rather than a machinist.  Here is a passage from the concluding chapter of Against Method:
The idea that science can, and should, be run according to fixed and universal rules, is both unrealistic and pernicious. It is unrealistic, for it takes too simple a view of the talents of man and of the circumstances which encourage, or cause, their development. And it is pernicious, for the attempt to enforce the rules is bound to increase our professional qualifications at the expense of our humanity. In addition, the idea is detrimental to science, for it neglects the complex physical and historical conditions which influence scientific change. It makes our science less adaptable and more dogmatic: every methodological rule is associated with cosmological assumptions, so that using the rule we take it for granted that the assumptions are correct. Naive falsificationism takes it for granted that the laws of nature are manifest and not hidden beneath disturbances of considerable magnitude. Empiricism takes it for granted that sense experience is a better mirror of the world than pure thought. Praise of argument takes it for granted that the artifices of Reason give better results than the unchecked play of our emotions. Such assumptions may be perfectly plausible and even true. Still, one should occasionally put them to a test. Putting them to a test means that we stop using the methodology associated with them, start doing science in a different way and see what happens. Case studies such as those reported in the preceding chapters show that such tests occur all the time, and that they speak against the universal validity of any rule. All methodologies have their limitations and the only 'rule' that survives is 'anything goes'.
His most basic conclusion is epistemic anarchism, expressed in the "anything goes" slogan, but without the apparent relativism suggested by the phrase: there is no "organon," no "inductive logic," and no "Scientific Method" that guides the creation and validation of science.  But scientists do often succeed in learning and defending important truths about nature nonetheless.

(Here is an online version of the analytical contents and concluding chapter of Against Method.  And here is a link to an article by John Preston on Feyerabend in the Stanford Encyclopedia of Philosophy.)

Feyerabend as artisanal scientist


I've generally found Paul Feyerabend's position on science to be a bit too extreme. Here is one provocative statement in the analytical index of Against Method:
Thus science is much closer to myth than a scientific philosophy is prepared to admit. It is one of the any forms of thought that have been developed by man, and not necessarily the best. It is conspicuous, noisy, and impudent, but it is inherently superior only for those who have already decided in favour of a certain ideology, or who have accepted it without having ever examined its advantages and its limits. And as the accepting and rejecting of ideologies should be left to the individual it follows that the separation of state and church must be supplemented by the separation of state and science, that most recent, most aggressive, and most dogmatic religious institution. Such a separation may be our only chance to achieve a humanity we are capable of, but have never fully realised.
Fundamentally my objection is that Feyerabend seems to leave no room at all for rationality in science: no scientific method, no grip for observation, and no force to scientific reasoning. A cartoon takeaway from his work is a slogan: science is just another language game, a rhetorical system, with no claim to rational force based on empirical study and reasoning.  Feyerabend seems to be the ultimate voice for the idea of relativism in knowledge systems -- much as Klamer and McCloskey seemed to argue with regard to economic theory in The Consequences of Economic Rhetoric.

This isn't a baseless misreading of Feyerabend. In fact, it isn't a bad paraphrase of Against Method. But it isn't the whole story either.  And at bottom, I don't think it is accurate to say that Feyerabend rejects the idea of scientific rationality.  Rather, he rejects one common interpretation of that notion: the view that scientific rationality can be reduced to a set of universal canons of investigation and justification, and that there is a neutral and universal set of standards of inference that decisively guide choice of scientific theories and hypotheses.  So I think it is better to understand Feyerabend as presenting an argument against a certain view in the philosophy of science rather than against science itself.

Instead, I now want to understand Feyerabend as holding something like this: that there is "reasoning" in scientific research, and this reasoning has a degree of rational credibility.  However, the reasoning that scientists do is always contextual and skilled, rather than universal and mechanical.  And it doesn't result in proofs and demonstrations, but rather a preponderance of reasons favoring one interpretation rather than another.  (Significantly, this approach to scientific justification sounds a bit like the view argued about sociological theories in an earlier posting.)

Here are a few reasons for thinking that Feyerabend endorses some notion of scientific rationality.

First, Feyerabend is a philosopher and historian of science who himself demonstrates a great deal of respect for empirical and historical detail.  The facts matter to Feyerabend, in his interpretation of the history of science.  He establishes his negative case with painstaking attention to the details of the history of science -- Newton, optics, quantum mechanics. This is itself a kind of empirical reasoning about the actual intellectual practices of working scientists. But if Feyerabend were genuinely skeptical of the enterprise of offering evidence in favor of claims, this work would be pointless.

Second, his own exposition of several scientific debates demonstrates a realist's commitment to the issues at stake. Take his discussion of the micro-mechanisms of reflection and light "rays". If there were in principle no way of evaluating alternative theories of these mechanisms, it would be pointless to consider the question. But actually, Feyerabend seems to reason on the assumption that one theory is better than another, given the preponderance of reasons provided by macro-observations and mathematical-physical specification of the hypotheses.

Third, he takes a moderate view on the relation between empirical observation and scientific theory in "How to Be a Good Empiricist":
The final reply to the question put in the title is therefore as follows. A good empiricist will not rest content with the theory that is in the centre of attention and with those tests of the theory which can be carried out in a direct manner. Knowing that the most fundamental and the most general criticism is the criticism produced with the help of alternatives, he will try to invent such alternatives. (102)
This passage is "moderate" in a specific sense: it doesn't give absolute priority to a given range of empirical facts; but neither does it dismiss the conditional epistemic weight of a body of observation.

So as a historian of science, Feyerabend seems to have no hesitation himself to engage in empirical reasoning and persuading, and he seems to grant a degree of locally compelling reasoning in the context of specific physical disputes.  And he appears to presuppose a degree of epistemic importance -- always contestable -- for a body of scientific observation and discovery.

What he seems most antagonistic to is the positivistic idea of a universal scientific method -- a set of formally specified rules that guide research and the evaluation of theories. Here is how he puts the point in "On the Limited Validity of Methodological Rules" (collected in Knowledge, Science and Relativism). 
It is indubitable that the application of clear, well-defined, and above all 'rational' rules occasionally leads to results. A vast number of discoveries owe their existence to the systematic procedures of their discoverers. But from that, it does not follow that there are rules which must be obeyed for every cognitive act and every scientific investigation. On the contrary, it is totally improbable that there is such a system of rules, such a logic of scientific discovery, which permeates all reasoning without obstructing it in any way. The world in which we live is very complex. Its laws do not lay open to us, rather they present themselves in diverse disguises (astronomy, atomic physics, theology, psychology, physiology, and the like). Countless prejudices find their way into every scientific action, making them possible in the first place. It is thus to be expected that every rule, even the most 'fundamental', will only be successful in a limited domain, and that the forced application of the rule outside of its domain must obstruct research and perhaps even bring it to stagnation. This will be illustrated by the following examples. (138)
It is the attainability of a universal, formal philosophy of science that irritates him. Instead, he seems to basically be advocating for a limited and conditioned form of local rationality -- not a set of universal maxims but a set of variable but locally justifiable practices. The scientist is an artisan rather than a machinist.  Here is a passage from the concluding chapter of Against Method:
The idea that science can, and should, be run according to fixed and universal rules, is both unrealistic and pernicious. It is unrealistic, for it takes too simple a view of the talents of man and of the circumstances which encourage, or cause, their development. And it is pernicious, for the attempt to enforce the rules is bound to increase our professional qualifications at the expense of our humanity. In addition, the idea is detrimental to science, for it neglects the complex physical and historical conditions which influence scientific change. It makes our science less adaptable and more dogmatic: every methodological rule is associated with cosmological assumptions, so that using the rule we take it for granted that the assumptions are correct. Naive falsificationism takes it for granted that the laws of nature are manifest and not hidden beneath disturbances of considerable magnitude. Empiricism takes it for granted that sense experience is a better mirror of the world than pure thought. Praise of argument takes it for granted that the artifices of Reason give better results than the unchecked play of our emotions. Such assumptions may be perfectly plausible and even true. Still, one should occasionally put them to a test. Putting them to a test means that we stop using the methodology associated with them, start doing science in a different way and see what happens. Case studies such as those reported in the preceding chapters show that such tests occur all the time, and that they speak against the universal validity of any rule. All methodologies have their limitations and the only 'rule' that survives is 'anything goes'.
His most basic conclusion is epistemic anarchism, expressed in the "anything goes" slogan, but without the apparent relativism suggested by the phrase: there is no "organon," no "inductive logic," and no "Scientific Method" that guides the creation and validation of science.  But scientists do often succeed in learning and defending important truths about nature nonetheless.

(Here is an online version of the analytical contents and concluding chapter of Against Method.  And here is a link to an article by John Preston on Feyerabend in the Stanford Encyclopedia of Philosophy.)

Thursday, February 18, 2010

Scientific realism for the social sciences


What is involved in taking a realist approach to social science knowledge? Most generally, realism involves the view that at least some of the assertions of a field of knowledge make true statements about the properties of unobservable things, processes, and states in the domain of study.  Several important philosophers of science have taken up this issue in the past three decades, including Rom Harre (Causal Powers: Theory of Natural Necessity) and Roy Bhaskar (A Realist Theory of Science).  Peter Manicas's recent book, A Realist Philosophy of Social Science: Explanation and Understanding, is a useful step forward within this tradition. Here is how he formulates the perspective of scientific realism:
The real goal of science ... is understanding of the processes of nature. Once these are understood, all sorts of phenomena can be made intelligible, comprehensible, unsurprising. (14)
Explanation ... requires that there is a "real connection," a generative nexus that produced or brought about the event (or pattern) to be explained. (20)
So realism has to do with discovering underlying processes that give rise to observable phenomena. And causal mechanisms are precisely the sorts of underlying processes that are at issue.  Here is how Manicas summarizes his position:
Theory provides representations of the generative mechanisms,including hypotheses regarding ontology, for example, that there are atoms, and hypotheses regarding causal processes, for example, that atoms form molecules in accordance with principles of binding. We noted also that a regression to more fundamental elements and processes also became possible. So quantum theory offers generative mechanisms of processes in molecular chemistry. Typically, for any process, there will be at least one mechanism operating, although for such complex processes as organic growth there will be many mechanisms at work. Theories that represent generative mechanisms give us understanding. We make exactly this move as regards understanding in the social sciences, except that, of course, the mechanisms are social. (75)
Manicas's illustrations of causal powers and mechanisms are most often drawn from the natural world. But what basis do we have for thinking that social entities have stable causal properties -- let alone a profile of causal powers that are roughly invariant across instances?

Consider an example, Theda Skocpol's definition of social revolutions:
Social revolutions are rapid, basic transformations of socio-economic and political institutions, and--as Lenin so vividly reminds us--social revolutions are accompanied and in part effectuated through class upheavals from below. It is this combination of thorough-going structural transformation and massive class upheavals that sets social revolutions apart from coups, rebellions, and even political revolutions and national independence movements. (link)
Realism invites us to consider whether "social revolutions" really have the characteristics she attributes to them.  Do social revolutions have an underlying nature distinctive causal powers that might be identified by a social theory?  More generally, what basis do we have for thinking that certain types of social entities possess a specific set of causal powers?

The answer seems to be, very little.  Types of social entities -- revolutions, states, riots, market economies, fascist movements -- are heterogeneous groupings of concrete social formations rather than "kinds" along the lines of "metal" or "gene".  Each of the extended historical events that Skocpol offers as instances of the category "social revolution" is unique and contingent in a variety of ways; these historical episodes do not share a common causal nature.  It is legitimate to group them together under the term "social revolution"; but it is essential that we not commit the error of reification and imagine that the group so constituted must share a fundamental causal nature in common.  So the most direct application of this kind of realism to the social sciences seems somewhat unpromising.

But we are on firmer ground when we consider a particularly central type of assertion in the social sciences: claims about underlying causal mechanisms or social processes.  So what does it mean to assert that a given social mechanism "really exists"? 

Take the idea of "stereotype threat" as one of the mechanisms underlying an important social fact, the racial and gender differences in performance that have been observed on some standardized tests (Claude Steele and Joshua Aronson, "Stereotype Threat and the Intellectual Test Performance of African Americans" (link); see also this article in the Atlantic).  We can summarize the theory along these lines: "Prevalent assumptions about the characteristics and performance of various salient social groups can depress (or enhance) the performance of members of those groups on intellectual and physical tasks.  This provides a partial explanation of the observed differentials in performance."  This mechanism is hypothesized as one of the ways in which performance by individuals in various groups is socially influenced in such a way as to lead to differential performance across groups.  It postulates a set of internal psychological mechanisms surrounding cognition and problem-solving, all related to the individual's self-ascribed social identity.

The realism question is this: do these hypothetical psychological effects actually occur in real human individuals?  And do these differences in cognitive processes lead to differential performance across groups?  If we confirm both these points, then we can conclude that "stereotype threat is a real social psychological mechanism."  The microfoundations of this mechanism reside in two locations: the concrete cognitive processes of the individuals, and the social behaviors of persons around these individuals, giving subtle cues about stereotypes that are discerned by the test-taker.

So we might say that we can conclude that a postulated social mechanism "really" exists if we are able to provide piecemeal empirical and theoretical arguments demonstrating that the terms of the mechanism hypothesis are confirmed in the actions and behavior of agents; and that these patterns of action do in fact typically lead to the sorts of outcomes postulated.  In other words, we need to look at our hypotheses about social mechanisms as small, somewhat separable theories that need separate empirical, historical, and theoretical evaluation.  And when we are successful in providing convincing support for these mechanism-theories, we are also justified in concluding that the postulated mechanism really exists.  The social world really embodies stereotype threat if individuals are really affected in their cognitive performances by the sorts of subtle behavioral cues mentioned by the theory, in roughly the ways stipulated by the theory.  And we will feel most confident in this assertion if we also find new areas of behavior where this mechanism also appears to be at work.

This approach has an important implication about social ontology.  The reality of a social mechanism is dependent on facts about agents, their characteristics of agency, and the environment of social relationships within which they act.  So there is a close intellectual relationship between the ontology of methodological localism and realism about causal mechanisms.

(The smokestack image above illustrates a different kind of social mechanism -- the workings of externalities in a market economy, creating pollution by dumping public harms to save private costs.)

Scientific realism for the social sciences


What is involved in taking a realist approach to social science knowledge? Most generally, realism involves the view that at least some of the assertions of a field of knowledge make true statements about the properties of unobservable things, processes, and states in the domain of study.  Several important philosophers of science have taken up this issue in the past three decades, including Rom Harre (Causal Powers: Theory of Natural Necessity) and Roy Bhaskar (A Realist Theory of Science).  Peter Manicas's recent book, A Realist Philosophy of Social Science: Explanation and Understanding, is a useful step forward within this tradition. Here is how he formulates the perspective of scientific realism:
The real goal of science ... is understanding of the processes of nature. Once these are understood, all sorts of phenomena can be made intelligible, comprehensible, unsurprising. (14)
Explanation ... requires that there is a "real connection," a generative nexus that produced or brought about the event (or pattern) to be explained. (20)
So realism has to do with discovering underlying processes that give rise to observable phenomena. And causal mechanisms are precisely the sorts of underlying processes that are at issue.  Here is how Manicas summarizes his position:
Theory provides representations of the generative mechanisms,including hypotheses regarding ontology, for example, that there are atoms, and hypotheses regarding causal processes, for example, that atoms form molecules in accordance with principles of binding. We noted also that a regression to more fundamental elements and processes also became possible. So quantum theory offers generative mechanisms of processes in molecular chemistry. Typically, for any process, there will be at least one mechanism operating, although for such complex processes as organic growth there will be many mechanisms at work. Theories that represent generative mechanisms give us understanding. We make exactly this move as regards understanding in the social sciences, except that, of course, the mechanisms are social. (75)
Manicas's illustrations of causal powers and mechanisms are most often drawn from the natural world. But what basis do we have for thinking that social entities have stable causal properties -- let alone a profile of causal powers that are roughly invariant across instances?

Consider an example, Theda Skocpol's definition of social revolutions:
Social revolutions are rapid, basic transformations of socio-economic and political institutions, and--as Lenin so vividly reminds us--social revolutions are accompanied and in part effectuated through class upheavals from below. It is this combination of thorough-going structural transformation and massive class upheavals that sets social revolutions apart from coups, rebellions, and even political revolutions and national independence movements. (link)
Realism invites us to consider whether "social revolutions" really have the characteristics she attributes to them.  Do social revolutions have an underlying nature distinctive causal powers that might be identified by a social theory?  More generally, what basis do we have for thinking that certain types of social entities possess a specific set of causal powers?

The answer seems to be, very little.  Types of social entities -- revolutions, states, riots, market economies, fascist movements -- are heterogeneous groupings of concrete social formations rather than "kinds" along the lines of "metal" or "gene".  Each of the extended historical events that Skocpol offers as instances of the category "social revolution" is unique and contingent in a variety of ways; these historical episodes do not share a common causal nature.  It is legitimate to group them together under the term "social revolution"; but it is essential that we not commit the error of reification and imagine that the group so constituted must share a fundamental causal nature in common.  So the most direct application of this kind of realism to the social sciences seems somewhat unpromising.

But we are on firmer ground when we consider a particularly central type of assertion in the social sciences: claims about underlying causal mechanisms or social processes.  So what does it mean to assert that a given social mechanism "really exists"? 

Take the idea of "stereotype threat" as one of the mechanisms underlying an important social fact, the racial and gender differences in performance that have been observed on some standardized tests (Claude Steele and Joshua Aronson, "Stereotype Threat and the Intellectual Test Performance of African Americans" (link); see also this article in the Atlantic).  We can summarize the theory along these lines: "Prevalent assumptions about the characteristics and performance of various salient social groups can depress (or enhance) the performance of members of those groups on intellectual and physical tasks.  This provides a partial explanation of the observed differentials in performance."  This mechanism is hypothesized as one of the ways in which performance by individuals in various groups is socially influenced in such a way as to lead to differential performance across groups.  It postulates a set of internal psychological mechanisms surrounding cognition and problem-solving, all related to the individual's self-ascribed social identity.

The realism question is this: do these hypothetical psychological effects actually occur in real human individuals?  And do these differences in cognitive processes lead to differential performance across groups?  If we confirm both these points, then we can conclude that "stereotype threat is a real social psychological mechanism."  The microfoundations of this mechanism reside in two locations: the concrete cognitive processes of the individuals, and the social behaviors of persons around these individuals, giving subtle cues about stereotypes that are discerned by the test-taker.

So we might say that we can conclude that a postulated social mechanism "really" exists if we are able to provide piecemeal empirical and theoretical arguments demonstrating that the terms of the mechanism hypothesis are confirmed in the actions and behavior of agents; and that these patterns of action do in fact typically lead to the sorts of outcomes postulated.  In other words, we need to look at our hypotheses about social mechanisms as small, somewhat separable theories that need separate empirical, historical, and theoretical evaluation.  And when we are successful in providing convincing support for these mechanism-theories, we are also justified in concluding that the postulated mechanism really exists.  The social world really embodies stereotype threat if individuals are really affected in their cognitive performances by the sorts of subtle behavioral cues mentioned by the theory, in roughly the ways stipulated by the theory.  And we will feel most confident in this assertion if we also find new areas of behavior where this mechanism also appears to be at work.

This approach has an important implication about social ontology.  The reality of a social mechanism is dependent on facts about agents, their characteristics of agency, and the environment of social relationships within which they act.  So there is a close intellectual relationship between the ontology of methodological localism and realism about causal mechanisms.

(The smokestack image above illustrates a different kind of social mechanism -- the workings of externalities in a market economy, creating pollution by dumping public harms to save private costs.)

Scientific realism for the social sciences


What is involved in taking a realist approach to social science knowledge? Most generally, realism involves the view that at least some of the assertions of a field of knowledge make true statements about the properties of unobservable things, processes, and states in the domain of study.  Several important philosophers of science have taken up this issue in the past three decades, including Rom Harre (Causal Powers: Theory of Natural Necessity) and Roy Bhaskar (A Realist Theory of Science).  Peter Manicas's recent book, A Realist Philosophy of Social Science: Explanation and Understanding, is a useful step forward within this tradition. Here is how he formulates the perspective of scientific realism:
The real goal of science ... is understanding of the processes of nature. Once these are understood, all sorts of phenomena can be made intelligible, comprehensible, unsurprising. (14)
Explanation ... requires that there is a "real connection," a generative nexus that produced or brought about the event (or pattern) to be explained. (20)
So realism has to do with discovering underlying processes that give rise to observable phenomena. And causal mechanisms are precisely the sorts of underlying processes that are at issue.  Here is how Manicas summarizes his position:
Theory provides representations of the generative mechanisms,including hypotheses regarding ontology, for example, that there are atoms, and hypotheses regarding causal processes, for example, that atoms form molecules in accordance with principles of binding. We noted also that a regression to more fundamental elements and processes also became possible. So quantum theory offers generative mechanisms of processes in molecular chemistry. Typically, for any process, there will be at least one mechanism operating, although for such complex processes as organic growth there will be many mechanisms at work. Theories that represent generative mechanisms give us understanding. We make exactly this move as regards understanding in the social sciences, except that, of course, the mechanisms are social. (75)
Manicas's illustrations of causal powers and mechanisms are most often drawn from the natural world. But what basis do we have for thinking that social entities have stable causal properties -- let alone a profile of causal powers that are roughly invariant across instances?

Consider an example, Theda Skocpol's definition of social revolutions:
Social revolutions are rapid, basic transformations of socio-economic and political institutions, and--as Lenin so vividly reminds us--social revolutions are accompanied and in part effectuated through class upheavals from below. It is this combination of thorough-going structural transformation and massive class upheavals that sets social revolutions apart from coups, rebellions, and even political revolutions and national independence movements. (link)
Realism invites us to consider whether "social revolutions" really have the characteristics she attributes to them.  Do social revolutions have an underlying nature distinctive causal powers that might be identified by a social theory?  More generally, what basis do we have for thinking that certain types of social entities possess a specific set of causal powers?

The answer seems to be, very little.  Types of social entities -- revolutions, states, riots, market economies, fascist movements -- are heterogeneous groupings of concrete social formations rather than "kinds" along the lines of "metal" or "gene".  Each of the extended historical events that Skocpol offers as instances of the category "social revolution" is unique and contingent in a variety of ways; these historical episodes do not share a common causal nature.  It is legitimate to group them together under the term "social revolution"; but it is essential that we not commit the error of reification and imagine that the group so constituted must share a fundamental causal nature in common.  So the most direct application of this kind of realism to the social sciences seems somewhat unpromising.

But we are on firmer ground when we consider a particularly central type of assertion in the social sciences: claims about underlying causal mechanisms or social processes.  So what does it mean to assert that a given social mechanism "really exists"? 

Take the idea of "stereotype threat" as one of the mechanisms underlying an important social fact, the racial and gender differences in performance that have been observed on some standardized tests (Claude Steele and Joshua Aronson, "Stereotype Threat and the Intellectual Test Performance of African Americans" (link); see also this article in the Atlantic).  We can summarize the theory along these lines: "Prevalent assumptions about the characteristics and performance of various salient social groups can depress (or enhance) the performance of members of those groups on intellectual and physical tasks.  This provides a partial explanation of the observed differentials in performance."  This mechanism is hypothesized as one of the ways in which performance by individuals in various groups is socially influenced in such a way as to lead to differential performance across groups.  It postulates a set of internal psychological mechanisms surrounding cognition and problem-solving, all related to the individual's self-ascribed social identity.

The realism question is this: do these hypothetical psychological effects actually occur in real human individuals?  And do these differences in cognitive processes lead to differential performance across groups?  If we confirm both these points, then we can conclude that "stereotype threat is a real social psychological mechanism."  The microfoundations of this mechanism reside in two locations: the concrete cognitive processes of the individuals, and the social behaviors of persons around these individuals, giving subtle cues about stereotypes that are discerned by the test-taker.

So we might say that we can conclude that a postulated social mechanism "really" exists if we are able to provide piecemeal empirical and theoretical arguments demonstrating that the terms of the mechanism hypothesis are confirmed in the actions and behavior of agents; and that these patterns of action do in fact typically lead to the sorts of outcomes postulated.  In other words, we need to look at our hypotheses about social mechanisms as small, somewhat separable theories that need separate empirical, historical, and theoretical evaluation.  And when we are successful in providing convincing support for these mechanism-theories, we are also justified in concluding that the postulated mechanism really exists.  The social world really embodies stereotype threat if individuals are really affected in their cognitive performances by the sorts of subtle behavioral cues mentioned by the theory, in roughly the ways stipulated by the theory.  And we will feel most confident in this assertion if we also find new areas of behavior where this mechanism also appears to be at work.

This approach has an important implication about social ontology.  The reality of a social mechanism is dependent on facts about agents, their characteristics of agency, and the environment of social relationships within which they act.  So there is a close intellectual relationship between the ontology of methodological localism and realism about causal mechanisms.

(The smokestack image above illustrates a different kind of social mechanism -- the workings of externalities in a market economy, creating pollution by dumping public harms to save private costs.)

Thursday, December 17, 2009

Merton's sociology of science



The organized study of "science" as an epistemic practice and a knowledge product has taken at least three major forms in the past century: the philosophy of science, the history of science, and the sociology of science.  Philosophers have been primarily interested in the logic of scientific inquiry and the rational force of scientific knowledge.  Historians have been interested in the circumstances, both external and internal, through which important periods of the growth of scientific knowledge have occurred -- the Newtonian revolution, the Darwinian revolution, the "discovery" of cold fusion (above).  And sociologists have been interested in examining the norms and organizations through which "science" is practiced -- how young scientists are trained, how collaboration and competition work within a scientific discipline or a laboratory, how results are assessed and communicated.

And because the intellectual frameworks within which philosophers, historians, and sociologists have been educated differ substantially, these meta-disciplines of the study of science are significantly different as well.  The philosophers are largely interested in the quality of the product -- the rational force of a given body of scientific knowledge.  The historians are interested in the contingencies of development of a given field.  And the sociologists are interested in the social processes that lead to the creation of a body of scientific knowledge; they are inclined to "bracket" the epistemic standing or truth-value of the theories and hypotheses that a tradition has produced.

Robert Merton was one of the giants of American sociology.  One of his core contributions had to do with his efforts to define the subject matter and methodology of the sociology of science.  A volume of Merton's essays from the 1930s through 1960s on the sociology of science appeared in 1971, The Sociology of Science: Theoretical and Empirical Investigations, and these essays are worth re-reading today.  Here are some of Merton's formulations of the task of the sociology of science in "The Neglect of the Sociology of Science" (1952):
Numerous works ... have variously dealt with one or another part of the subject [of the sociology of science].  But these ... have not examined the linkage between science and social structure by means of a conceptual framework that has proved effective in other branches of sociology. (210)
Among current introductory textbooks in sociology ... all deal at length with the institutions of family, state, and economy, many with the institution of religion, but very few indeed with science as a major institution in modern society. (211)
Unlike the pattern in solidly established disciplines, in the sociology of science, facts are typically divorced from systematic theory.  Empirical observation and hypothesis do not provide mutual assistance.  Not having that direct bearing on a body of theory which makes for cumulative knowledge, the empirical studies that have been made, from time to time, by natural scientists have resulted in a thin scattering of unconnected findings rather than a chain of closely linked findings. (212-13)
So the goal of the sociology of science is to examine the linkage between science and social structure using the "conceptual frameworks" of sociology.  The sociology of science needs to be based on empirical observation -- i.e. it cannot be a purely conceptual discipline.  But it must possess an appropriate framework of sociological theory within the context of which empirical observations of scientific practice can be explained.

Several ideas were particularly important in Merton's efforts to conceptualize the processes of science:
  • the importance of discovering the norms that underlay the research and thinking of scientists in a given field (the ethos of science); ("the emotionally toned complex of rules, prescriptions, mores, beliefs, values and presuppositions that are held to be binding upon the scientist")
  • the internal social structure of various scientific disciplines (training, communication, information flow, evaluation)
  • the incentives that exist within the scientific disciplines that constitute the driving force for scientists to aggressively pursue publishable results; the reward system.  How do the imperatives of the ethos and the institutions of science come together to determine the patterns of behavior of the individual working scientist?  
One of Merton's key methodological contributions was the idea that it was possible to observe and measure the institutions of science through careful empirical examination of the biographies, journals, and other objective markers of scientific activity. (This is what he refers to as the conceptual framework of sociology.)  He repeatedly attempts to quantify and measure the activities of science -- publication rates, inventions, numbers of scientists in a field, and so forth.  For example, in "Changing Foci of Interest in the Sciences and Technology" (1938) he attempts to estimate the pattern of shifting scientific interest in England over the period of 1665-1702 by counting the numbers of articles to be published in various areas of science (tables 3-4). He finds that the physical and formal sciences fall in frequency during this time period, while the life sciences rise significantly (201).  How should we explain this shift in the interests of the scientific community?  Merton advocates a sociological cause.  Referring back to Rickert and Weber, he argues that this shift is likely to be linked to the broader societal interests of the time period:
Scientists often choose problems for investigation that are vitally linked with major values and interests of the time.  Much of this study will examine some of the extra-scientific elements which significantly influenced, if they did not wholly determine, the foci of scientific interest. (203)
Another of Merton's key ideas is the role of the reward system of science, which he takes to be the motor of scientific change:
Like other institutions, the institution of science has developed an elaborate system for allocating rewards to those who variously live up to its norms.... The evolution of this system has been the work of centuries, and it will of course never be finished.  (297)
And he finds that this reward system gives great weight to originality and priority -- which leads to the recurring phenomena of priority disputes, fraud, and plagiarism in science (309).  And it leads as well to the phenomenon of multiple discovery by independent researchers:
The pages of the history of science record thousands of instances of similar discoveries having been made by scientists working independently of one another.  Sometimes the discoveries are simultaneous or almost so; sometimes a scientist will make anew a discovery which, unknown to him, somebody else had made years before.  Such occurrences suggest that discoveries become virtually inevitable when prerequisite kinds of knowledge and tools accumulate in man's cultural store and when the attention of an appreciable number of investigators becomes focused on a problem, by emerging social needs, by developments internal to the science, or by both. (371)
A final topic of interest in Merton's sociology of science is his treatment of "peer review".  Here is how he describes this part of the institutions of science in "Institutionalized Patterns of Evaluation in Science" (1971):
The referee system in science involves the systematic use of judges to assess the acceptability of manuscripts submitted for publication.  The referee is thus an example of status judges who are charged with evaluating the quality of role-performances in a social system.  They are found in every institutional sphere. (460)
So we might encapsulate Merton's intellectual framework for the sociology of science in a few basic ideas: the sociologist needs to find ways of observing scientific practice empirically; the conduct of science is driven by the values that the institutions of science inculcate and enforce; the incentives created by the scientific institutions shape and motivate the behavior of scientists; and the product of science is the result of the constrained activities of scientists shaped and motivated in these particular ways.  So the sociologist needs to discover and document the values, he/she needs to uncover the evaluation mechanisms, and he/she needs to discover in detail how innovations and theories have emerged in specific research environments.

What this description leaves out from a contemporary perspective might include:
  • analysis of social networks of collaboration and communication among scientists
  • analysis of the institutions of training through which scientists learn their craft
  • content analysis of the results of scientific inquiry -- recurring features of theory and explanation within specific research traditions
(Trevor Pinch is an important contemporary contributor to current sociology of science and is one of the editors of the 1995 volume, Handbook of Science and Technology Studies. Here is a link to his syllabus for a seminar on the sociology of science that indicates how he conceptualizes the discipline.)