•  67
    Knowledge, moral praise, and moral side effects
    Journal of Theoretical and Philosophical Psychology 27 (1): 123-126. 2007.
    Thomas Nadelhoffer claims that a morally praiseworthy agent cannot knowingly produce a morally positive side effect. I claim that the argument Nadelhoffer uses to establish this claim has two false premises. The two false premises are: If something is a side effect, then it is not desired or intended; and If agent S is morally praiseworthy and knows that her performing p will produce a morally positive q, then q forms part of S's reason for p-ing. I offer a counterexample that shows the falsity …Read more
  •  3059
    This chapter provides empirical evidence about everyday attitudes concerning euthanasia. These attitudes have important implications for some ethical arguments about euthanasia. Two experiments suggested that some different descriptions of euthanasia have modest effects on people’s moral permissibility judgments regarding euthanasia. Experiment 1 (N = 422) used two different types of materials (scenarios and scales) and found that describing euthanasia differently (‘euthanasia’, ‘aid in dying’, …Read more
  •  647
    When the side effect of an action involves moral considerations (e.g. when a chairman’s pursuit of profits harms the environment) it tends to influence theory-of-mind judgments. On average, bad side effects are judged intentional whereas good side effects are judged unintentional. In a series of two experiments, we examined the largely uninvestigated roles of individual differences in this judgment asymmetry. Experiment 1 indicated that extraversion accounted for variations in intentionality jud…Read more
  •  141
    The Virtues of Ignorance
    with Edward T. Cokely
    Review of Philosophy and Psychology 3 (3): 335-350. 2012.
    It is commonly claimed that fully virtuous individuals cannot be ignorant and that everyday intuitions support this fact. Others maintain that there are virtues of ignorance and most people recognize them. Both views cannot be correct. We report evidence from three experiments suggesting that ignorance does not rule out folk attributions of virtue. Additionally, results show that many of these judgments can be predicted by one’s emotional stability—a heritable personality trait. We argue that th…Read more
  •  190
    Perspective in intentional action attribution
    with Maegan Harris and Ashley Perez
    Philosophical Psychology 25 (5): 673-687. 2012.
    In two experiments, we demonstrate that intentional action intuitions vary as a function of whether one brings about or observes an event. In experiment 1a (N?=?38), participants were less likely to judge that they intended (M?=?2.53, 7 point scale) or intentionally (M?=?2.67) brought about a harmful event compared to intention (M?=?4.16) and intentionality (M?=?4.11) judgments made about somebody else. Experiments 1b and 1c confirmed and extended this pattern of actor-observer differences. Expe…Read more
  •  111
    Experimental philosophy needs to matter: Reply to Andow and Cova
    with Edward T. Cokely and Brittany Nelson
    Philosophical Psychology 29 (4): 567-569. 2016.
    Nearly a decade of research has provided overwhelming evidence that there is no the folk intuition about many fundamental philosophical questions, just as there is no the gender of human beings or...
  •  323
    Recently, there has been an increased interest in folk intuitions about freedom and moral responsibility from both philosophers and psychologists. We aim to extend our understanding of folk intuitions about freedom and moral responsibility using an individual differences approach. Building off previous research suggesting that there are systematic differences in folks’ philosophically relevant intuitions, we present new data indicating that the personality trait extraversion predicts, to a signi…Read more
  •  113
    Frankfurt and the folk: An experimental investigation of Frankfurt-style cases
    Consciousness and Cognition 20 (2): 401-414. 2011.
    An important disagreement in contemporary debates about free will hinges on whether an agent must have alternative possibilities to be morally responsible. Many assume that notions of alternative possibilities are ubiquitous and reflected in everyday intuitions about moral responsibility: if one lacks alternatives, then one cannot be morally responsible. We explore this issue empirically. In two studies, we find evidence that folk judgments about moral responsibility call into question two popul…Read more
  •  77
    The good life: Unifying the philosophy and psychology of well-being
    with Silke Feltz
    Philosophical Psychology 29 (8): 1253-1255. 2016.
  •  103
    Moral Character: An Empirical Theory (review)
    Philosophical Psychology 28 (7): 1079-1082. 2015.
  •  97
    Experimental Philosophy
    Analyze and Kritik 31 (1): 201-219. 2009.
    Experimental philosophy is a new approach to philosophy that incorporates the experimental methodologies of psychology, behavioral economics, and sociology. Experimental philosophers generally maintain that, in addition to traditional philosophical practices, these ways of gathering evidence can be instrumental in shedding light on philosophically important issues. Rather than relying on their own intuitions about specific cases, experimental philosophers perform systematic experiments to determ…Read more
  •  944
    Questioning the free will comprehension question
    with E. Cokely
    In S. Ohlsson & R. Catrambone (eds.), Proceedings of the 32nd Annual Conference of the Cognitive Science Society, Cognitive Science Society. pp. 2440--2445. 2010.
    Understanding the folk notion of free will and moral responsibility is important for a host of applied and theoretical issues in psychology, philosophy, and ethics. The bulk of experimental research has focused on folk intuitions concerning determinism's relation to free will and moral responsibility. However, determinism is a difficult term for many folk to understand. Accordingly researchers often use comprehension questions to identify and exclude large proportions of participants who seem to…Read more
  •  145
    Virtue or consequences: The folk against pure evaluational internalism
    with Edward T. Cokely
    Philosophical Psychology 26 (5): 702-717. 2013.
    Evaluational internalism holds that only features internal to agency (e.g., motivation) are relevant to attributions of virtue [Slote, M. (2001). Morals from motives. Oxford: Oxford University Press]. Evaluational externalism holds that only features external to agency (e.g., consequences) are relevant to attributions of virtue [Driver, J. (2001). Uneasy virtue. Cambridge: Cambridge University Press]. Many evaluational externalists and internalists claim that their view best accords with philoso…Read more
  •  169
    Predicting Philosophical Disagreement
    with Edward Cokely
    Philosophy Compass 8 (10): 978-989. 2013.
    We review evidence showing that disagreement in folk and expert philosophical intuitions can be predicted by global, heritable personality traits. The review focuses on recent studies of intuitions about free will, ethics, and intentional action. These findings are philosophically important because they suggest that while some projects cannot be done, other projects must take individual differences in philosophical character into account. But care needs to be taken when interpreting the implicat…Read more
  •  124
    Experimental philosophy of actual and counterfactual free will intuitions
    Consciousness and Cognition 36 (C): 113-130. 2015.
    Five experiments suggested that everyday free will and moral responsibility judgments about some hypothetical thought examples differed from free will and moral responsibility judgments about the actual world. Experiment 1 (N = 106) showed that free will intuitions about the actual world measured by the FAD-Plus poorly predicted free will intuitions about a hypothetical person performing a determined action (r = .13). Experiments 2–5 replicated this result and found the relations between actual …Read more
  •  231
    An error theory for compatibilist intuitions
    with Melissa Millan
    Philosophical Psychology 28 (4): 529-555. 2015.
    One debate in the experimental exploration of everyday judgments about free will is whether most people are compatibilists or incompatibilists. Some recent research suggests that many people who have incompatibilist intuitions are making a mistake; as such, they do not have genuine incompatibilist intuitions. Another worry is whether most people appropriately understand determinism or confuse it with similar, but different, notions such as fatalism. In five studies we demonstrate people distingu…Read more
  •  1772
    Adaptive diversity and misbelief
    with Edward T. Cokely
    Behavioral and Brain Sciences 32 (6): 516. 2009.
    Although it makes some progress, McKay & Dennett's (M&D's) proposal is limited because (1) the argument for adaptive misbelief is not new, (2) arguments overextend the evidence provided, and (3) the alleged sufficient conditions are not as prohibitive as suggested. We offer alternative perspectives and evidence, including individual differences research, indicating that adaptive misbeliefs are likely much more widespread than implied.
  •  317
    Persistent bias in expert judgments about free will and moral responsibility: A test of the Expertise Defense
    with Eric Schulz and Edward T. Cokely
    Consciousness and Cognition 20 (4): 1722-1731. 2011.
    Many philosophers appeal to intuitions to support some philosophical views. However, there is reason to be concerned about this practice as scientific evidence has documented systematic bias in philosophically relevant intuitions as a function of seemingly irrelevant features (e.g., personality). One popular defense used to insulate philosophers from these concerns holds that philosophical expertise eliminates the influence of these extraneous factors. Here, we test this assumption. We present d…Read more
  •  1845
    The proper role of intuitions in epistemology
    with M. Bishop
    In Marcin Młlkowski & Konrad Talmont-Kaminski (eds.), Beyond Description. Naturalism and Normativity, College Publications. 2010.
    Intuitions play an important role in contemporary philosophy. It is common for theories in epistemology, morality, semantics and metaphysics to be rejected because they are inconsistent with a widely and firmly held intuition. Our goal in this paper is to explore the role of epistemic intuitions in epistemology from a naturalistic perspective. Here is the question we take to be central: (Q) Ought we to trust our epistemic intuitions as evidence in support of our epistemological theories? We will…Read more
  •  403
    Moral responsibility and free will: A meta-analysis
    Consciousness and Cognition 30 (C): 234-246. 2014.
    Fundamental beliefs about free will and moral responsibility are often thought to shape our ability to have healthy relationships with others and ourselves. Emotional reactions have also been shown to have an important and pervasive impact on judgments and behaviors. Recent research suggests that emotional reactions play a prominent role in judgments about free will, influencing judgments about determinism’s relation to free will and moral responsibility. However, the extent to which affect infl…Read more
  •  35
  •  1219
    Virtue in Business: Morally Better, Praiseworthy, Trustworthy, and More Satisfying
    with E. T. Cokely
    Journal of Organizational Moral Psychology. forthcoming.
    In four experiments, we offer evidence that virtues are often judged as uniquely important for some business practices (e.g., hospital management and medical error investigation). Overall, actions done only from virtue (either by organizations or individuals) were judged to feel better, to be more praiseworthy, to be more morally right, and to be associated with more trustworthy leadership and greater personal life satisfaction compared to actions done only to produce the best consequences or to…Read more
  •  813
    The Knobe effect: A brief overview
    Journal of Mind and Behavior 28 (3-4): 265-277. 2007.
    Joshua Knobe (2003a) has discovered that the perceived goodness or badness of side effects of actions influences people's ascriptions of intentionality to those side effects. I present the paradigmatic cases that elicit what has been called the Knobe effect and offer some explanations of the Knobe effect. I put these explanations into two broad groups. One explains the Knobe effect by referring to our concept of intentional action. The other explains the Knobe effect without referring to our con…Read more
  •  764
    Problems with the appeal to intuition in epistemology
    Philosophical Explorations 11 (2). 2008.
    George Bealer argues that intuitions are not only reliable indicators of truth, they are necessary to the philosophical endeavor. Specifically, he thinks that intuitions are essential sources of evidence for epistemic justification. I argue that Bealer's defense of intuitions either (1) is insufficient to show that actual human beings are in a position to use intuitions for epistemic justification, or (2) begs the question. The growing empirical data about our intuitions support the view that hu…Read more
  •  86
    Heuristics and Life-Sustaining Treatments
    with Stephanie Samayoa
    Journal of Bioethical Inquiry 9 (4): 443-455. 2012.
    Surrogates’ decisions to withhold or withdraw life-sustaining treatments (LSTs) are pervasive. However, the factors influencing surrogates’ decisions to initiate LSTs are relatively unknown. We present evidence from two experiments indicating that some surrogates’ decisions about when to initiate LSTs can be predictably manipulated. Factors that influence surrogate decisions about LSTs include the patient’s cognitive state, the patient’s age, the percentage of doctors not recommending the initia…Read more
  •  71
    Claims About Surrogate Decision-Making Accuracy Require Empirical Evidence
    with Taylor Abt
    American Journal of Bioethics 12 (10): 41-43. 2012.
    The American Journal of Bioethics, Volume 12, Issue 10, Page 41-43, October 2012.
  •  185
    Individual differences in theory-of-mind judgments: Order effects and side effects
    with Edward T. Cokely
    Philosophical Psychology 24 (3): 343-355. 2011.
    We explore and provide an account for a recently identified judgment anomaly, i.e., an order effect that changes the strength of intentionality ascriptions for some side effects (e.g., when a chairman's pursuit of profits has the foreseen but unintended consequence of harming the environment). Experiment 1 replicated the previously unanticipated order effect anomaly controlling for general individual differences. Experiment 2 revealed that the order effect was multiply determined and influenced …Read more
  •  1019
    The Relevance of Folk Intuitions to Philosophical Debates
    Dissertation, Florida State University. 2008.
    A large portion of philosophy done in the Western analytic tradition attempts to provide conceptual analyses which are tested by examples that elicit intuitions. These intuitions are, in turn, used as evidence either for or against a given analysis. In recent years, there has been much discussion of the uses of intuitions from empirically minded philosophers and psychologists. The basic strategy is to discover empirically how “normal” folks think about certain topics in philosophy. This applicat…Read more
  •  176
    Sommers (2010) argues that experimental philosophers of free will have largely been asking the wrong question – the question whether philosophically naïve individuals think that free will and moral responsibility are compatible with determinism. The present studies begin to alleviate this concern by testing the intuitive plausibility of Pereboom’s (2001) four case argument. The general pattern of responses from two experiments does not support Pereboom’s predictions. Moreover, those who were hig…Read more