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Author's personal copy Consciousness and Cognition 18 (2009) 356–358

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Reply

Adaptive variation in judgment and philosophical intuition q Edward T. Cokely a,*, Adam Feltz b a b

Max Planck Institute for Human Development, Center for Adaptive Behavior and Cognition, Königin – Luise Str. 5, 14195 Berlin, Germany Departments of Philosophy and Interdisciplinary Studies, Schreiner University, 2100 Memorial Boulevard, Kerrville, TX 78028, United States

a r t i c l e

i n f o

Article history: Available online 12 February 2009

Keywords: Experimental philosophy Adaptive cognition Free will Moral responsibility Judgment Intuition Decision making Personality Individual differences Experimental design Research methods

a b s t r a c t Our theoretical understanding of individual differences can be used as a tool to test and refine theory. Individual differences are useful because judgments, including philosophically relevant intuitions, are the predictable products of the fit between adaptive psychological mechanisms (e.g., heuristics, traits, skills, capacities) and task constraints. As an illustration of this method and its potential implications, our target article used a canonical, representative, and affectively charged judgment task to reveal a relationship between the heritable personality trait extraversion and some compatabilist judgments. In the current Reply, we further clarify major theoretical implications of these data and outline potential opportunities and obstacles for this methodology. Discussion focuses on (1) the need for theoretically grounded a priori predictions; (2) the use of precise process level data and theory; (3) the possibility of convergent validity as personality is known to predict life experiences and outcomes; and (4) the fundamentally adaptive nature of cognition. Ó 2009 Elsevier Inc. All rights reserved.

1. Introduction How can we develop a broad theoretical understanding of the dynamics of folk judgment and philosophically relevant intuition? In the target article, we introduced a new approach and vision: philosophically relevant intuitions can be seen as the predictable product of the fit between adaptive psychological processes and task content (Cokely & Feltz, 2009; Feltz & Cokely, 2009). As such, the relations between intuitions and individual differences can be used to shed new light on underlying cognitive mechanisms. It would be a misunderstanding of our perspective to suggest that we make any general claim about the relationship between extraversion and all compatibilist-friendly intuitions. Instead, given that research has shown ‘‘most of the action in moral judgment is in the automatic, affectively laden intuitions” (Haidt, 2008), we focused on implications and results from a canonical, representative, and affectively charged judgment task. Fundamentally, we are claiming (a) that folk judgments will tend to be predictably, adaptively fragmented, (b) that this fragmentation can be used as a tool to test theory and develop higher fidelity studies of proximal judgments processes, and (c) that some historically intractable philosophical debates may be partially explained by the many influences of individual differences such as heritable personality traits. In what follows, we discuss potential opportunities and obstacles, and further clarify major theoretical implications.

q Reply to Commentary on Feltz, A., & Cokely, E.T. (2009). Temperament and intuition: A commentary on Feltz and Cokely. Consciousness and Cognition, 18, 351–355. * Corresponding author. E-mail address: [email protected] (E.T. Cokely).

1053-8100/$ - see front matter Ó 2009 Elsevier Inc. All rights reserved. doi:10.1016/j.concog.2009.01.001

Author's personal copy E.T. Cokely, A. Feltz / Consciousness and Cognition 18 (2009) 356–358

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1.1. Methodology It is satisfying that others have begun to follow our suggestions and approach, replicating some of our results (Cokely & Feltz, 2009; Feltz & Cokely, 2008, Nadelhoffer, Kvaran, & Nahmias, 2009). We agree that our data highlight important methodological issues. It is often valuable to use control conditions and control questions.1 When comparing results it is also important to consider differences in design and materials.2 Moreover, it is noteworthy that potentially trivial effect sizes (e.g., < 1% of the variance) are unlikely to be significant in smaller (e.g., N = 60) versus larger samples (e.g., N = 300+).3 Critically, however, we believe that the most pressing and neglected methodological issue concerns the role of theoretically grounded a priori predictions. Using individual differences as a tool requires more than simply running large sample studies with many variables and fishing for a relationship. Correlations are important only to the extent they are reliable and can help us understand psychological processes and philosophical intuition. Without theoretical models and a priori predictions, the presence of significant results is unrevealing, potentially reflecting Type I error (random sampling error)—an issue known to plague exploratory correlational studies. Indeed, in the absence of a priori predictions or replication studies, confidence in significant or surprising findings is not merited (Gigerenzer, 2004).4 1.2. Intuition Intuition can mean different things to philosophers and psychologists. To some philosophers, intuitions may reflect the product of careful and discriminating analysis. In contrast, psychological theory often differentiates between more intuitive (e.g., fast, automatic, and affective) and more deliberative (e.g. slow, analytical, and effortful) cognitive processes. Precise language and data on actual judgment processes will be necessary to clarify theoretical debates about mechanisms of philosophically relevant intuitions. To illustrate, potential variations in judgment may reflect differences in information processing (e.g., simpler intuitive versus more complicated deliberative reasoning), that could obscure theoretically important dynamics such as internal conflict (e.g., one may feel an answer is wrong even if judged to be reasonable). Interestingly, we have shown that philosophical training is associated with the use of a highly deliberative cognitive style.5 Hence, in the absence of process level data, theoretical interpretations of judgment differences between folk and philosophers are highly uncertain as judgment could reflect a variety of factors (e.g., knowledge, abilities, and cognitive reflection). 1.3. Personality Personality effects have been criticized as relatively less important when compared to situational variables (i.e., the person-situation debate). The detailed examination of such limitations has proven theoretically interesting and relevant in philosophy (Doris, 2002). Nonetheless, modern personality theory embraces the dynamic interplay of both person and situation variables, and has demonstrated that the effects of personality are often of the same magnitude as those observed in experimental studies (Funder, 2001; Roberts, Kuncel, Shiner, Caspi, & Goldberg, 2007). There is also overwhelming evidence that personality is related to meaningful life outcomes, such as success in relationships and occupations, and mortality. We suspect that this is one of the major implications of the target article data. Consistent with what many philosophers have long argued, our results suggest that at least some philosophical intuitions may be related to important predictors of people’s subjective experiences and actual lives. Perhaps it is more than mere coincidence that extraverts, who behave as compatibalists in affectively charged cases, often have successful and satisfying relationships, and enjoy higher life satisfaction. 1.4. Adaptive cognition There is a growing body of research indicating that philosophically relevant intuitions are influenced by factors such as context, culture, personality, and development (Cokely & Feltz, 2009; Haidt, 2007; Nichols, 2004; Woolfolk, Doris, & Darley, 2006). These findings call into question traditional views about both the mechanisms and implications of philosophically relevant intuitions, and signal that a major paradigm shift is necessary and underway. Recently, Knobe and Doris (in press) have analyzed and criticized the notion of invariance—the assumption that people apply the same criteria in all of their moral responsibility judgments. This criticism is related to other discussions about normative standards and the fundamental

1 We also used real-world, concrete reductionistic scenarios and control questions to determine if participants understood the determinism involved. Excluding those who failed the control condition did not change results. In contrast to a hypothesis that extraverts are simply ‘‘more likely than others to agree,” there was no relationship between the reductionistic scenario and extraversion in our data or those reported by Nadelhoffer, Kvaran, and Nahmais (NKN). 2 Any potential differences between NKN’s data and ours are difficult to interpret as NKN (1) used substantially different materials including abstract scenarios involving non-human creatures, (2) collected data via online surveys raising potential sampling issues such as self-selection biases (Wright, 2005), and (3) used long multi-part surveys that risk confounds such as carryover effects or effort depletion (Gailliot et al., 2007). 3 Our results have also been replicated in smaller (ca. N = 30), heterogeneous German samples (age range 19–72). 4 In our sample neither agreeableness nor neuroticism were related to any cases. Potential colinearity of the two personality variables in NKN’s data may indicate the presence of a confound complicating interpretation and necessitating replication and hierarchical modeling. 5 In a volunteer sample of 224 students enrolled in philosophy courses at the Florida State University, the number of philosophy courses was predictive of cognitive reflection test scores (Frederick, 2005), r (222) = .16, p = .02.

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E.T. Cokely, A. Feltz / Consciousness and Cognition 18 (2009) 356–358

nature of the human mind (Chase, Hertwig, & Gigerenzer, 1998). Consistent with these arguments, we suggest that philosophically relevant intuitions can be effectively theoretically characterized within an adaptive or ecological framework— i.e. a Darwinian inspired perspective on the fundamental goal-enabling nature of cognition (Gigerenzer & Todd, 1999). On the adaptive view, the goals and needs of organisms, such as finding food, securing mates, or protecting offspring, may or may not benefit from cognition that is logically coherent or philosophically invariant. For these organisms, fitness may be best served when cognition is variable, diverse, and tuned to ecological constraints and demands. An organism’s success will depend on the extent to which its cognition can benefit from and exploit the fit between its internal (i.e., psychological) and external (e.g., social and physical) environments regardless of logical coherence (or lack thereof). In an uncertain and complex world such as ours, we should not expect or necessarily even want to always be governed by processes that maintain logically coherent cognition (Gigerenzer, 2008; Gigerenzer et al., 1999). Indeed, it is well known that our cognitive constraints limit our ability to be ‘‘rational,” but what is more provocative are the data indicating that cognitive constraints can facilitate adaptive judgment (Gaissmaier, Schooler, & Rieskamp, 2006; Schooler & Hertwig, 2005). Accordingly, our research program and approach are fundamentally concerned with when, how, and why adaptive psychological processes (e.g. cognitive sensitivities, affective biases, and simple heuristics) enable, track, or contradict intuitions that are produced via traditional analytical philosophy. A cornerstone of these efforts involves the investigation of the complex and varied relations between individual differences-such as personality traits-and philosophically relevant intuitions. 1.5. Conclusion The target article reveals a relationship between the heritable personality trait extraversion and some compatibilist judgments. This represents a unique theoretical insight even if, or indeed particularly because, extraversion may not be related to compatibilism in non-affective cases. To clarify any remaining confusion, we again emphasize that the individual differences approach we have introduced should be seen as a tool to test and refine theory, allowing for the design of novel and revealing experiments. With more research, we expect to find more evidence that philosophically relevant intuitions (among both philosophers and folk) are multiply determined. We argue that a more comprehensive theoretical understanding of philosophically relevant intuitions will require the exploration of the interplay between persons, processes, and task-environments. The data presented in the target article mark a first step into unexplored territory—one that may explain, at least in part, why some fundamental philosophical debates have proven so intractable. It is our belief and hope that this step also provides fertile new ideas and tools for advancing theoretical development in experimental philosophy and cognitive science. Acknowledgments Authorship is equal. We thank Paula Parpart, Eric Schulz, and Gregor Caregnato for assistance and data collection. We are also grateful to Joshua Knobe and Gerd Gigerenzer for comments on earlier drafts. References Chase, V. M., Hertwig, R., & Gigerenzer, G. (1998). Visions of rationality. Trends in Cognitive Sciences, 2, 206–214. Cokely, E. T., & Feltz, A. (2009). Individual differences, judgment biases, and theory-of-mind: Deconstructing the intentional action side effect asymmetry. Journal of Research in Personality, 43, 18–24. Doris, J. M. (2002). Lack of character: Personality and moral behavior. New York: Cambridge University Press. Feltz, A., & Cokely, E. T. (2008). The fragmented folk: More evidence of stable individual differences in moral judgments and folk intuitions. In B. C. Love, K. McRae & V. M. Sloutsky (Eds.), Proceedings of the 30th annual conference of the cognitive science society (pp. 1771–1776). Austin, TX: Cognitive Science Society. Feltz, A., & Cokely, E. T. (2009). Do judgments about freedom and responsibility depend on who you are? Personality differences in intuitions about compatibilism and incompatibilism. Consciousness and Cognition, 18, 345–353. doi:10.1016/j.concog.2008.08.001. Frederick, S. (2005). Cognitive reflection and decision making. Journal of Economic Perspective, 19, 25–42. Funder, D. (2001). Personality. Annual Review of Psychology, 52, 197–221. Gailliot, M. T., Baumeister, R. F., DeWall, C. N., Maner, J. K., Plant, E. A., Tice, D. M., et al (2007). Self-control relies on glucose as a limited energy source: Willpower is more than a metaphor. Journal of Personality and Social Psychology, 92, 325–336. Gaissmaier, W., Schooler, L. J., & Rieskamp, J. (2006). Simple predictions fueled by capacity limitations: When are they successful? Journal of Experimental Psychology: Learning, Memory &Cognition, 32, 966–982. Gigerenzer, G. (2004). Mindless statistics. The Journal of Socio-Economics, 33, 587–606. Gigerenzer, G. (2008). Moral intuition = fast and frugal heuristics? In The cognitive science of morality: Intuition and diversity. In W. Sinnott-Armstrong (Ed.). Moral psychology (Vol. 2, pp. 1–26). Cambridge, Mass: MIT Press. Gigerenzer, G., & Todd, P. M. (1999). Simple heuristics that make us smart. Oxford [u.a.]: Oxford University Press. Haidt, J. (2007). The new synthesis in moral psychology. Science, 316, 998–1002. Haidt, J. (2008). Morality. Perspectives in Psychological Science, 3, 65–72. Knobe, J., & Doris, J. (in press). Strawsonian Variations: Folk morality and the search for a unified theory. In J. Doris et al. (Eds.), The handbook of moral psychology. Oxford: Oxford University Press. Nadelhoffer, T., Kvaran, T., & Nahmias, E. (2009). Temperament and intuition: A commentary on Feltz and Cokley. Consciousness and Cognition, 18, 351–355. Nichols, S. (2004). Folk concepts and intuitions: From philosophy to cognitive science. Trends in Cognitive Science, 8, 514–518. Roberts, B. W., Kuncel, N. R., Shiner, R., Caspi, A., & Goldberg, L. R. (2007). The comparative predictive validity of personality traits, SES, and cognitive ability. Perspectives on Psychological Science, 2, 313–351. Schooler, L. J., & Hertwig, R. (2005). How forgetting aids heuristic inference. Psychological Review, 112, 610–628. Woolfolk, R., Doris, J., & Darley, J. (2006). Identification, situational constraint, and social cognition: Studies in the attribution of moral responsibility. Cognition, 100, 283–301. Wright, K. B. (2005). Researching internet-based populations: Advantages and disadvantages of online survey research, online questionnaire authoring software packages, and web survey services. Journal of Computer-Mediated Communication, 10 (article 11).

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