I’ve been told that in the good old days of the 1970s, when Quine’s desert landscapes were regarded as ideal real estate and David Lewis and John Rawls had not yet left a legion of influential students rewriting the terrain of metaphysics and ethics respectively, compatibilism was still compatibilism about free will. And, of course, incompatibilism was still incompatibilism about free will. That is, compatibilism was the view that free will was compatible with determinism. Incompatibilism was the view that free (...) will was incompatible with determinism.1 What philosophers argued about was whether free will was compatible with determinism. Mostly, this was an argument about how to understand claims that one could do otherwise. You needn’t have bothered to talk about moral responsibility, because it was just obvious that you couldn’t have moral responsibility without free will. The literature was a temple of clarity. Then, somehow, things began to go horribly wrong. To be sure, there had been some activity in the 1960s that would have struck some observers as ominous. Still, it was not until the 1980s that those initial warning signs gave way to real trouble. The meanings of terms twisted. (shrink)

In this enlightening book, Sam Harris argues that free will is an illusion but that this truth should not undermine morality or diminish the importance of social and political freedom; indeed, this truth can and should change the way we think about some of the most important questions in life.

Incompatibilists and compatibilists (mostly) agree that there is a strong intuition that a manipulated agent, i.e., an agent who is the victim of methods such as indoctrination or brainwashing, is unfree. They differ however on why exactly this intuition arises. Incompatibilists claim our intuitions in these cases are sensitive to the manipulated agent’s lack of ultimate control over her actions, while many compatibilists argue that our intuitions respond to damage inflicted by manipulation on the agent’s psychological and volitional capacities. Much (...) hangs on this issue because manipulation-based arguments are among the most important for defending incompatibilist views of free will. In this paper, I investigate this issue from a experimental perspective, using a set of statistical methods well suited for identifying the features of hypothetical cases people’s intuitions are responding to. Results strongly support the compatibilist view—subjects’ tendency to judge that a manipulated agent is unfree was found to depend on their judgments that the agent suffers impairments to certain psychological/volitional capacities that compatibilists say are the basis for free will. I discuss the significance of these results for the use of manipulation cases in the philosophical debate about free will. (shrink)

Though the revised edition of A Theory of Justice, published in 1999, is the definitive statement of Rawls's view, so much of the extensive literature on Rawls's theory refers to the first edition. This reissue makes the first edition once again available for scholars and serious students of Rawls's work.

Though the revised edition of A Theory of Justice, published in 1999, is the definitive statement of Rawls's view, so much of the extensive literature on Rawls's theory refers to the first edition.

‘Free will’ is the conventional name of a topic that is best discussed without reference to the will. It is a topic in metaphysics and ethics as much as in the philosophy of mind. Its central questions are ‘What is it to act (or choose) freely?’, and ‘What is it to be morally responsible for one’s actions (or choices)?’ These two questions are closely connected, for it seems clear that freedom of action is a necessary condition of moral responsibility, even (...) if it is not sufficient. (shrink)

Incompatibilists believe free will is impossible if determinism is true, and they often claim that this view is supported by ordinary intuitions. We challenge the claim that incompatibilism is intuitive to most laypersons and discuss the significance of this challenge to the free will debate. After explaining why incompatibilists should want their view to accord with pretheoretical intuitions, we suggest that determining whether incompatibilism is in fact intuitive calls for empirical testing. We then present the results of our studies, which (...) put significant pressure on the claim that incompatibilism is intuitive. Finally, we consider and respond to several potential objections to our approach. (shrink)

A great deal of fascinating research has gone into an attempt to uncover the fundamental criteria that people use when assigning moral responsibility. Nonetheless, it seems that most existing accounts fall prey to one counterexample or another. The underlying problem, we suggest, is that there simply isn't any single system of criteria that people apply in all cases of responsibility attribution. Instead, it appears that people use quite different criteria in different kinds of cases. [This paper was originally circulated under (...) the title 'Strawsonian Variations.']. (shrink)

In his new foreword to this edition, Hilary Putnam forcefully rejects these nativist claims.

Using empirical evidence to attack intuitions can be epistemically dangerous, because various of the complaints that one might raise against them (e.g., that they are fallible; that we possess no non-circular defense of their reliability) can be raised just as easily against perception itself. But the opponents of intuition wish to challenge intuitions without at the same time challenging the rest of our epistemic apparatus. How might this be done? Let us use the term “hopefulness” to refer to the extent (...) to which we possess a good capacity for the detection and correction of the errors of any fallible source of evidence. I argue that we should not trust putative sources of evidence that are substantially lacking in hopefulness (even if they are basically reliable), and that we are indeed already operating under such a norm in our ordinary and scientific practices. I argue further that the philosophical practice of the appeal to intuitions is, in these terms, badly hopeless... (shrink)

R. Jay Wallace argues in this book that moral accountability hinges on questions of fairness: When is it fair to hold people morally responsible for what they do? Would it be fair to do so even in a deterministic world? To answer these questions, we need to understand what we are doing when we hold people morally responsible, a stance that Wallace connects with a central class of moral sentiments, those of resentment, indignation, and guilt. To hold someone responsible, he (...) argues, is to be subject to these reactive emotions in one's dealings with that person. Developing this theme with unusual sophistication, he offers a new interpretation of the reactive emotions and traces their role in our practices of blame and moral sanction. With this account in place, Wallace advances a powerful and sustained argument against the common view that accountability requires freedom of will. Instead, he maintains, the fairness of holding people responsible depends on their rational competence: the power to grasp moral reasons and to control their behavior accordingly. He shows how these forms of rational competence are compatible with determinism. At the same time, giving serious consideration to incompatibilist concerns, Wallace develops a compelling diagnosis of the common assumption that freedom is necessary for responsibility. Rigorously argued, eminently readable, this book touches on issues of broad concern to philosophers, legal theorists, political scientists, and anyone with an interest in the nature and limits of responsibility. (shrink)

This chapter proposes an approach to the free will/determinism problem that addresses the issue of whether the apparent conflict between free will and determinism is real or not. According to common sense, man has free will; when a person makes a choice, he or she indeed has the choice thought to be had. However, who is to say that the choices one makes are not predetermined? For all we know, determinism might be true. Common sense either is not aware of, (...) or does not take seriously, the thought of determinism. Nevertheless, as soon as a philosopher explains the thesis of determinism, common sense sees the problem: the truth of determinism means the absence of free will. (shrink)

This article summarizes the moderate revisionist position I put forth in Four Views on Free Will and responds to objections to it from Robert Kane, John Martin Fischer, Derk Pereboom, and Michael McKenna. Among the principle topics of the article are (1) motivations for revisionism, what it is, and how it is different from compatibilism and hard incompatibilism, (2) an objection to the distinctiveness of semicompatibilism against conventional forms of compatibilism, and (3) whether moderate revisionism is committed to realism about (...) moral responsibility. (shrink)

In recent years, reflection on the relationship between individual moral responsibility and determinism has undergone a remarkable renaissance. Incompatibilists, those who believe moral responsibility is incompatible with determinism, have offered powerful new arguments in support of their views. Compatibilists, those who think moral responsibility is compatible with determinism, have responded with ingenious counterexamples and alternative accounts of responsibility. Despite the admirable elevation of complexity and subtlety within both camps, the trajectory of the literature is somewhat discouraging. Every dialectical stalemate between (...) incompatibilists and compatibilists seems to be superseded by a similar though often more subtle stalemate.1 The stalemates have two sources. On the one hand, incompatibilists again and again find powerful intuitive support from our folk concept. On the other hand, compatibilists seem right to insist that even if determinism were true, this would not mitigate our need for a concept of responsibility. (shrink)

This article summarizes and extends the moderate revisionist position I put forth in Four Views on Free Will and responds to objections to it from Robert Kane, John Martin Fischer, Derk Pereboom, and Michael McKenna. Among the principle topics of the article are (1) motivations for revisionism, what it is, and how it is different from compatibilism and hard incompatibilism, (2) an objection to libertarianism based on the moral costs of its current epistemic status, (3) an objection to the distinctiveness (...) of semicompatibilism against conventional forms of compatibilism and (4) whether moderate revisionism is committed to realism about moral responsibility. (shrink)

"This is an important book, and no one interested in issues which touch on the free will will want to ignore it."--Ethics. In this stimulating and thought-provoking book, the author defends the thesis that free will is incompatible with determinism. He disputes the view that determinism is necessary for moral responsbility. Finding no good reason for accepting determinism, but believing moral responsiblity to be indubitable, he concludes that determinism should be rejected.

On the whole, we continue to believe firmly both that we have free will and that we are morally responsible for what we do. Here, the author argues that there is a fundamental sense in which there is no such thing as free will or true moral responsibility (as ordinarily understood). Devoting the main body of his book to an attempt to explain why we continue to believe as we do, Strawson examines various aspects of the "cognitive phenomenology" of freedom--the (...) nature, causes, and consequences of our deep commitment to belief in freedom. (shrink)

In this paper we propose to argue for two claims. The first is that a sizeable group of epistemological projects – a group which includes much of what has been done in epistemology in the analytic tradition – would be seriously undermined if one or more of a cluster of empirical hypotheses about epistemic intuitions turns out to be true. The basis for this claim will be set out in Section 2. The second claim is that, while the jury is (...) still out, there is now a substantial body of evidence suggesting that some of those empirical hypotheses are true. Much of this evidence derives from an ongoing series of experimental studies of epistemic intuitions that we have been conducting. A preliminary report on these studies will be presented in Section 3. In light of these studies, we think it is incumbent on those who pursue the epistemological projects in question to either explain why the truth of the hypotheses does not undermine their projects, or to say why, in light of the evidence we will present, they nonetheless assume that the hypotheses are false. In Section 4, which is devoted to Objections and Replies, we’ll consider some of the ways in which defenders of the projects we are criticizing might reply to our challenge. Our goal, in all of this, is not to offer a conclusive argument demonstrating that the epistemological projects we will be criticizing are untenable. Rather, our aim is to shift the burden of argument. (shrink)

Frank Jackson has given us an elegant and important book. It is, by a long shot, the most sophisticated defense of the use of conceptual analysis in philosophy that has ever been offered. But we also we find it a rather perplexing book, for we can’t quite figure out what Jackson thinks a conceptual analysis is. And until we get clearer on that, we’re not at all sure that conceptual analysis, as Jackson envisions it, is possible. The main reason for (...) our perplexity is that Jackson seems to be making some empirical assumptions about people’s intuitions and the psychological mechanisms that give rise to them, though it is far from clear exactly what these empirical assumptions are. Moreover, on what is perhaps the most natural reading, he is making at least one assumption about which many cognitive scientists who study concepts have serious doubts. In the first of our two sections, we will elaborate this theme. Our goal, in that section, is not so much to criticize as to seek clarification. It is a great virtue of this journal’s multiple review format that critics can pose questions to authors, and the authors get to reply. So we hope that in his reply Jackson will help us understand his defense of conceptual analysis by explaining more clearly what his empirical assumptions are; and if he is indeed making an assumption that many cognitive scientists would challenge, we hope he will tell us why he thinks that challenge is misguided. In the second section, our stance will be more critical. There is one empirical assumption about which Jackson is admirably clear and explicit. However, we think there is now good reason to think that this assumption is false. (shrink)

Frank Jackson has given us an elegant and important book. It is, by a long shot, the most sophisticated defense of the use of conceptual analysis in philosophy that has ever been offered. But we also we find it a rather perplexing book, for we can’t quite figure out what Jackson thinks a conceptual analysis is. And until we get clearer on that, we’re not at all sure that conceptual analysis, as Jackson envisions it, is possible. The main reason for (...) our perplexity is that Jackson seems to be making some empirical assumptions about people’s intuitions and the psychological mechanisms that give rise to them, though it is far from clear exactly what these empirical assumptions are. Moreover, on what is perhaps the most natural reading, he is making at least one assumption about which many cognitive scientists who study concepts have serious doubts. In the first of our two sections, we will elaborate this theme. Our goal, in that section, is not so much to criticize as to seek clarification. It is a great virtue of this journal’s multiple review format that critics can pose questions to authors, and the authors get to reply. So we hope that in his reply Jackson will help us understand his defense of conceptual analysis by explaining more clearly what his empirical assumptions are; and if he is indeed making an assumption that many cognitive scientists would challenge, we hope he will tell us why he thinks that challenge is misguided. In the second section, our stance will be more critical. There is one empirical assumption about which Jackson is admirably clear and explicit. However, we think there is now good reason to think that this assumption is false. (shrink)

Recently, a number of philosophers have advanced a surprising conclusion: people's judgments about whether an agent brought about an outcome intentionally are pervasively influenced by normative considerations. In this paper, we investigate the ‘Chairman case’, an influential case from this literature and disagree with this conclusion. Using a statistical method called structural path modeling, we show that people's attributions of intentional action to an agent are driven not by normative assessments, but rather by attributions of underlying values and characterological dispositions (...) to the agent. In a second study, we examined people's judgments about what they think drives asymmetric intuitions in the Chairman case and found that people are highly inaccurate in identifying which features of the case their intuitions track. In the final part of the paper, we discuss how the statistical methods used in this study can help philosophers with the critical features problem, the problem of figuring out which among the myriad features present in hypothetical cases are the critical ones that our intuitions are responsive to. We show how the methods used in this study have some advantages over both armchair methods used by traditional philosophers and survey methods used by experimental philosophers. (shrink)

This paper develops a sympathetic critique of recent experimental work on free will and moral responsibility. Section 1 offers a brief defense of the relevance of experimental philosophy to the free will debate. Section 2 reviews a series of articles in the experimental literature that probe intuitions about the "compatibility question"—whether we can be free and morally responsible if determinism is true. Section 3 argues that these studies have produced valuable insights on the factors that influence our judgments on the (...) compatibility question, but that their general approach suffers from significant practical and philosophical difficulties. Section 4 reviews experimental work addressing other aspects of the free will/moral responsibility debate, and section 5 concludes with a discussion of avenues for further research. (shrink)

Thought experiments have played a central role in philosophical methodology, largely as a means of elucidating the nature of our concepts and the implications of our theories.1 Particular attention is given to widely shared “folk” intuitions – the basic untutored intuitions that the layperson has about philosophical questions.2 The folk intuition is meant to underlie our core metaphysical concepts, and philosophical analysis is meant to explicate or sometimes refine these naïve concepts. Consistency with the deliverances of folk intuitions is a (...) sign that the philosopher is making contact with his object of interest. In order to explore folk concepts, people are often asked to provide their intuitions about a state of affairs in some alternate universe or possible world, one that differs in particular, precise ways from the way things are in the actual world. Here we provide evidence that people’s intuitions about moral responsibility sometimes diverge across worlds even when the facts about these worlds are the same. Which world one considers actual affects at least some philosophical judgments, suggesting that it is not just possible worlds to which our intuitions are tied. We will present several possible explanations for the asymmetry we have identified, and we’ll consider some implications for philosophical intuition. (shrink)

An empirical study of people's intuitions about freedom of the will. We show that people tend to have compatiblist intuitions when they think about the problem in a more concrete, emotional way but that they tend to have incompatiblist intuitions when they think about the problem in a more abstract, cognitive way.

In this paper we discuss studies that show that most people do not find determinism to be incompatible with free will and moral responsibility if determinism is described in a way that does not suggest mechanistic reductionism. However, if determinism is described in a way that suggests reductionism, that leads people to interpret it as threatening to free will and responsibility. We discuss the implications of these results for the philosophical debates about free will, moral responsibility, and determinism.

Experimental philosophy is the name for a recent movement whose participants use the methods of experimental psychology to probe the way people think about philosophical issues and then examine how the results of such studies bear on traditional philosophical debates. Given both the breadth of the research being carried out by experimental philosophers and the controversial nature of some of their central methodological assumptions, it is of no surprise that their work has recently come under attack. In this paper we (...) respond to some criticisms of experimental philosophy that have recently been put forward by Antti Kauppinen. Unlike the critics of experimental philosophy, we do not think the fledgling movement either will or should fall before it has even had a chance to rise up to explain what it is, what it seeks to do (and not to do), and exactly how it plans to do it. Filling in some of the salient details is the main goal of the present paper. (shrink)

In this paper, we present the results of the construction and validation of a new psychometric tool for measuring beliefs about free will and related concepts: The Free Will Inventory (FWI). In its final form, FWI is a 29-item instrument with two parts. Part 1 consists of three 5-item subscales designed to measure strength of belief in free will, determinism, and dualism. Part 2 consists of a series of fourteen statements designed to further explore the complex network of people’s associated (...) beliefs and attitudes about free will, determinism, choice, the soul, predictability, responsibility, and punishment. Having presented the construction and validation of FWI, we discuss several ways that it could be used in future research, highlight some as yet unanswered questions that are ripe for interdisciplinary investigation, and encourage researchers to join us in our efforts to answer these questions. (shrink)

Philosophers working in the nascent field of ‘experimental philosophy’ have begun using methods borrowed from psychology to collect data about folk intuitions concerning debates ranging from action theory to ethics to epistemology. In this paper we present the results of our attempts to apply this approach to the free will debate, in which philosophers on opposing sides claim that their view best accounts for and accords with folk intuitions. After discussing the motivation for such research, we describe our methodology of (...) surveying people’s prephilosophical judgments about the freedom and responsibility of agents in deterministic scenarios. In two studies, we found that a majority of participants judged that such agents act of their own free will and are morally responsible for their actions. We then discuss the philosophical implications of our results as well as various difficulties inherent in such research. (shrink)

People’s concept of free will is often assumed to be incompatible with the deterministic, scientific model of the universe. Indeed, many scholars treat the folk concept of free will as assuming a special form of nondeterministic causation, possibly the notion of uncaused causes. However, little work to date has directly probed individuals’ beliefs about what it means to have free will. The present studies sought to reconstruct this folk concept of free will by asking people to define the concept (Study (...) 1) and by confronting them with a neuroscientific claim that free will is an illusion (Study 2), which invited them to either reconcile or contrast free will with determinism. The results suggest that the core of people’s concept of free will is a choice that fulfills one’s desires and is free from internal or external constraints. No evidence was found for metaphysical assumptions about dualism or indeterminism. (shrink)

Traditional approaches to moral psychology assumed that moral judgments resulted from the application of explicit commitments, such as those embodied in consequentialist or deontological philosophies. In contrast, recent work suggests that moral judgments often result from unconscious or emotional processes, with explicit commitments generated post hoc. This paper explores the intermediate position that moral commitments mediate moral judgments, but not through their explicit and consistent application in the course of judgment. An experiment with 336 participants finds that individuals vary in (...) the extent to which their moral commitments are consequentialist or deontological, and that this variation is systematically but imperfectly related to the moral judgments elicited by trolley car problems. Consequentialist participants find action in trolley car scenarios more permissible than do deontologists, and only consequentialists moderate their judgments when scenarios that typically elicit different intuitions are presented side by side. The findings emphasize the need for a theory of moral reasoning that can accommodate both the associations and dissociations between moral commitments and moral judgments. (shrink)

Claims about people's intuitions have long played an important role in philosophical debates. The new field of experimental philosophy seeks to subject such claims to rigorous tests using the traditional methods of cognitive science – systematic experimentation and statistical analysis. Work in experimental philosophy thus far has investigated people's intuitions in philosophy of language, philosophy of mind, epistemology, and ethics. Although it is now generally agreed that experimental philosophers have made surprising discoveries about people's intuitions in each of these areas, (...) considerable disagreement remains about the philosophical significance of the key findings. Some have argued that work in experimental philosophy should be assessed by asking whether it can contribute to the kind of inquiry that is normally pursued within analytic philosophy, while others suggest that work in experimental philosophy is best understood as a contribution to a more traditional sort of philosophical inquiry that long predates the birth of analytic philosophy. (shrink)

Consider the following principle: (LP) If an action is undetermined at a time t, then its happening rather than not happening at t would be a matter of chance or luck, and so it could not be a free and responsible action. This principle (which we may call the luck principle, or simply LP) is false, as I shall explain shortly. Yet it seems true.

It is my view that one essential difference between persons and other creatures is to be found in the structure of a person's will. Besides wanting and choosing and being moved to do this or that, men may also want to have certain desires and motives. They are capable of wanting to be different, in their preferences and purposes, from what they are. Many animals appear to have the capacity for what I shall call "first-order desires" or "desires of the (...) first order," which are simply desires to do or not to do one thing or another. No animal other than man, however, appears to have the capacity for reflective self-evaluation that is manifested in the formation of second-order desires. (shrink)

The Metaphysics of Free Will provides a through statement of the major grounds for skepticism about the reality of free will and moral responsibility. The author identifies and explains the sort of control that is associated with personhood and accountability, and shows how it is consistent with causal determinism. In so doing, out view of ourselves as morally responsible agents is protected against the disturbing changes posed by science and religion.

The philosophical interest of verbal disputes is twofold. First, they play a key role in philosophical method. Many philosophical disagreements are at least partly verbal, and almost every philosophical dispute has been diagnosed as verbal at some point. Here we can see the diagnosis of verbal disputes as a tool for philosophical progress. Second, they are interesting as a subject matter for first-order philosophy. Reflection on the existence and nature of verbal disputes can reveal something about the nature of concepts, (...) language, and meaning. In this article I first characterize verbal disputes, spell out a method for isolating and resolving them, and draw out conclusions for philosophical methodology. I then use the framework to draw out consequences in first-order philosophy. In particular, I argue that the analysis of verbal disputes can be used to support the existence of a distinctive sort of primitive concept and that it can be used to reconstruct a version of an analytic/synthetic distinction, where both are characterized in dialectical terms alone. (shrink)

Our interest in this paper is to drive a wedge of contention between two different programs that fall under the umbrella of “experimental philosophy”. In particular, we argue that experimental philosophy’s “negative program” presents almost as significant a challenge to its “positive program” as it does to more traditional analytic philosophy.

In this book, Tim O'Keefe reconstructs the theory of freedom of the ancient Greek philosopher Epicurus (341-271/0 BCE). Epicurus' theory has attracted much interest, but our attempts to understand it have been hampered by reading it anachronistically as the discovery of the modern problem of free will and determinism. O'Keefe argues that the sort of freedom which Epicurus wanted to preserve is significantly different from the 'free will' which philosophers debate today, and that in its emphasis on rational action it (...) has much closer affinities with Aristotle's thought than with current preoccupations. His original and provocative book will be of interest to a wide range of readers in Hellenistic philosophy. (shrink)

Every day we seem to make and act upon all kinds of free choices: some trivial, others so consequential that they change the course of one's life, or even the course of history. But are these choices really free, or are we compelled to act the way we do by factors beyond our control? Is the feeling that we could have made different decisions just an illusion? And if our choices are not free, is it legitimate to hold people morally (...) responsible for their actions? Pink looks at the fundamental philosophical question of free will, Engaging in discussion of the claim: 'If our actions are causally determined by events beyond our control, that means that we can never act freely, and so can never be held responsible for our actions. (shrink)

Accessible to students with no background in the subject, A Contemporary Introduction to Free Will provides an extensive and up-to-date overview of all the latest views on this central problem of philosophy. Opening with a concise introduction to the history of the problem of free will--and its place in the history of philosophy--the book then turns to contemporary debates and theories about free will, determinism, and related subjects like moral responsibility, coercion, compulsion, autonomy, agency, rationality, freedom, and more. Classical compatibilist (...) and new compatibilist theories of free will are considered along with the latest incompatibilist or libertarian theories and the most recent skeptical challenges to free will. Separate chapters are devoted to the relation of free will to moral responsibility and ethics; to modern science; and to religious questions about predestination, divine foreknowledge, and human freedom. Numerous down-to-earth examples and challenging thought experiments enliven the text. The book is an ideal addition to introduction to philosophy, metaphysics, and free will courses. (shrink)

Most people assume that, even though some degenerative or criminal behavior may be caused by influences beyond our control, ordinary human actions are not similarly generated, but rather are freely chosen, and we can be praiseworthy or blameworthy for them. A less popular and more radical claim is that factors beyond our control produce all of the actions we perform. It is this hard determinist stance that Derk Pereboom articulates in Living Without Free Will. Pereboom argues that our best scientific (...) theories have the consequence that factors beyond our control produce all of the actions we perform, and that because of this, we are not morally responsible for any of them. He seeks to defend the view that morality, meaning and value remain intact even if we are not morally responsible, and furthermore, that adopting this perspective would provide significant benefit for our lives. (shrink)

This provocative book refurbishes the traditional account of freedom of will as reasons-guided "agent" causation, situating its account within a general metaphysics. O'Connor's discussion of the general concept of causation and of ontological reductionism v. emergence will specially interest metaphysicians and philosophers of mind.

Robert Kane provides a critical overview of debates about free will of the past half century, relating this recent inquiry to the broader history of the free will issue and to vital currents of twentieth century thought. Kane also defends a traditional libertarian or incompatibilist view of free will, employing arguments that are both new to philosophy and that respond to contemporary developments in physics and biology, neuro science, and the cognitive and behavioral sciences.