Why More Intelligent Individuals Like Classical Music

The origin of values and preferences is an unresolved theoretical problem in social and behavioral sciences. The Savanna‐IQ Interaction Hypothesis, derived from the Savanna Principle and a theory of the evolution of general intelligence, suggests that more intelligent individuals are more likely to acquire and espouse evolutionarily novel values and preferences than less intelligent individuals but that general intelligence has no effect on the acquisition and espousal of evolutionarily familiar values and preferences. Recent work on the evolution of music suggests that music in its evolutionary origin was always vocal and that purely instrumental music is evolutionarily novel. The Savanna‐IQ Interaction Hypothesis would then imply that more intelligent individuals are more likely to prefer purely instrumental music than less intelligent individuals, but general intelligence has no effect on the preference for vocal music. The analyses of American (General Social Surveys) and British (British Cohort Study) data are consistent with this hypothesis. Additional analyses suggest that the effect of intelligence on musical preference is not a function of the cognitive complexity of music. Copyright © 2011 John Wiley & Sons, Ltd.     

The varying value of a friendly face: Experimentally induced stress is associated with higher preferences for friendship with people possessing feminine versus masculine face traits

Social support can provide a buffer to the negative consequences of stress. Previous research suggests that stress can promote affiliative and cooperative behaviours in those who are stressed. Here we examined how stress might influence who we choose to affiliate with. We measured preferences for friendships with friendly appearing feminized faces versus less friendly appearing masculinized faces after individuals undertook a stressful laboratory task. Stressed individuals had increased preferences for friendships with people with feminine faces. These data demonstrate that individuals prefer more friendly appearing feminine faced people as friends when stressed than when not stressed. This preference is likely adaptive in directing individuals towards others who are most likely to provide social support when it is needed and so reflect strategic friendship preferences.     

Differential Preferences for Happiness: Extraversion and Trait-Consistent Emotion Regulation

ABSTRACT The assumption that everyone wants to be happy is prevalent among psychologists and laypeople alike. The present investigation suggests that motives for happiness are not consistent across individuals or contexts. Three studies demonstrate that preferences for happiness vary as a function of trait extraversion and situational demands. When anticipating an effortful task that requires increased motivational engagement, individuals demonstrated trait-consistent emotional preferences. Extraverts were more likely to prefer happiness-inducing activities, whereas introverts were less likely to prefer such activities. These differential motives were specific to preferences for happiness compared to other emotions and independent of concurrent feelings. Overall, the present findings suggest that individuals low (vs. high) in extraversion may be less motivated to increase their happiness in effortful contexts.     

The Savanna-IQ interaction hypothesis: A critical examination of the comprehensive case presented in Kanazawa's The Intelligence Paradox

Kanazawa (2012b) has recently presented the most comprehensive case yet for his Savanna-IQ Interaction Hypothesis. According to the hypothesis, intelligence is a domain-specific adaptation which has been selected for as humans have moved away from the (evolutionarily familiar) Savanna. As such, ability in ‘evolutionarily novel’ tasks and ‘evolutionarily novel’ preferences are positively correlated with high IQ. This article will present a critical examination of the hypothesis, arguing that there is a strong case against anchoring human nature on the Savanna, the hypothesis predicts contradictory findings, there is empirical evidence against it, it is not falsifiable, and it is not necessary to explain that data which Kanazawa presents.     

Expectation and cooperation in prisoner’s dilemmas: The moderating role of game riskiness

This paper investigated the effect of risk orientation, game riskiness, and expectation of cooperation on cooperation in one-shot prisoner’s dilemmas (PD). Participants in pairs played PD games that varied on game riskiness such that for half of the games cooperation was more risky than defection (more risky games) while for another half cooperation was less risky (less risky games). They estimated how likely it was that the other player was going to cooperate (expectation of cooperation) before they made their cooperation/defection decision on each game. Supporting the Goal/Expectation Hypothesis, we replicated the effect that expectation of cooperation enhanced cooperation. We also found that risk-seeking individuals cooperated more in more risky games whereas risk-averse individuals cooperated more in less risky games. More importantly, we found that game riskiness moderated the effect of expectation of cooperation on cooperation. The positive effect of expectation of cooperation on cooperation was stronger for more risky games than for less risky games. Our results illustrated how the relation between expectation and cooperation as stipulated by the Goal/Expectation Hypothesis was moderated by riskiness of the situations.     

Product assortment and individual decision processes

Research presented in this article examines the impact of product assortment on individuals' decisions. Four experiments report converging evidence that the impact of assortment is moderated by the degree to which individuals have articulated attribute preferences, whereby individuals with an articulated ideal point are more likely to prefer larger assortments than individuals without articulated preferences. The data further show that choices made from large assortments are associated with more selective, alternative-based, and confirmatory processing for individuals with articulated preferences and more comprehensive, attribute-based, and comparative processing for those without articulated preferences.     

Family Formation and Returning to Institutional Religion in Young Adulthood

Institutional religious involvement wanes during young adulthood, but evidence suggests life‐course factors such as family formation bring people back to religion. Using the National Longitudinal Study of Adolescent to Adult Health (Waves 1, 3, and 4), we examine how often young adults who were involved in institutional religion as adolescents return—measured by religious service attendance and religious affiliation—after leaving in emerging adulthood, and how this return is patterned by family formation. The majority of young adults who leave do not return to regular religious service attendance, regardless of their family formation. But single parents, married parents, and childless married individuals are more likely, and childless cohabiting couples less likely, to return to religious communities than those who are both single and childless. Only married parents are more likely than childless singles to reaffiliate, though there is marginal evidence that childless married adults may also be more likely. Thus, the institutions of religion and family are still linked, even though overall levels of religious return are not as high as expected.     

Men's strategic preferences for femininity in female faces

Several evolutionarily relevant sources of individual differences in face preference have been documented for women. Here, we examine three such sources of individual variation in men's preference for female facial femininity: term of relationship, partnership status and self‐perceived attractiveness. We show that men prefer more feminine female faces when rating for a short‐term relationship and when they have a partner (Study 1). These variables were found to interact in a follow‐up study (Study 2). Men who thought themselves attractive also preferred more feminized female faces for short‐term relationships than men who thought themselves less attractive (Study 1 and Study 2). In women, similar findings for masculine preferences in male faces have been interpreted as adaptive. In men, such preferences potentially reflect that attractive males are able to compete for high‐quality female partners in short‐term contexts. When a man has secured a mate, the potential cost of being discovered may increase his choosiness regarding short‐term partners relative to unpartnered men, who can better increase their short‐term mating success by relaxing their standards. Such potentially strategic preferences imply that men also face trade‐offs when choosing relatively masculine or feminine faced partners. In line with a trade‐off, women with feminine faces were seen as more likely to be unfaithful and more likely to pursue short‐term relationships (Study 3), suggesting that risk of cuckoldry is one factor that may limit men's preferences for femininity in women and could additionally lead to preferences for femininity in short‐term mates.     

Felt obligations to reciprocate to an employer,preferences for mobility across employers,and gender: Three-way interaction effects on subsequent voice behavior

Previous research suggests that employees engage in voice behavior to reciprocate for the positive treatment they receive from employers, but less is known about individual differences in employees' willingness to engage in voice behavior to that end. The present study proposes that felt obligations to the organization relate more strongly to voice behavior when employees also have stronger preferences for job stability (rather than job mobility). We also propose that this two-way interaction will be further moderated by gender; specifically, males who feel strong obligations to reciprocate and have strong preferences for job stability are especially likely to engage in voice behavior. Data collected from 209 employees over an 8-month period support both the proposed two-way and three-way interaction effects. Thus, while the norm of reciprocity is widely held, the effects of felt obligations to employers on voice behavior also depend upon both gender differences and individual differences in preferences for job stability.     

Generational differences in workplace behavior

Popular stereotypes suggest that generational differences among workers present challenges for workplace managers. However, existing empirical research provides mixed evidence for generational differences in important values and attitudes. The current study extends generational effects research by examining differences in actual workplace behaviors. Drawing from commonly held generational stereotypes, the authors hypothesized that Baby Boomers would exhibit (Hypothesis 1) fewer job mobility behaviors and (Hypothesis 2) more instances of compliance‐related behaviors in comparison with both GenXers and Millennials, while (Hypothesis 3) GenXers would be less likely to work overtime in comparison with Baby Boomers and Millennials. A sample of 8,040 applicants at two organizations was used to test these predictions. Results provided support for Hypothesis 1 and Hypothesis 3 and partial support for Hypothesis 2, but the effect sizes for these relationships were small. It appears the effects of generational membership on workplace behavior are not as strong as suggested by commonly held stereotypes. Implications for future research and practice are discussed.     

Don't worry, be happy? Neuroticism, trait-consistent affect regulation, and performance

People regulate their affect either to feel good or to achieve instrumental success. The present experiments show that when driven by performance goals, people can be motivated to experience unpleasant affect when it is trait-consistent, because of its instrumental benefits (e.g., M. Tamir & M. D. Robinson, 2004). In 4 studies, individuals high in neuroticism were more likely than those low in neuroticism to choose to increase their level of worry, as indicated by self-reported preferences (Study 1) and by behavioral choices in experimental settings (Studies 2-4). As predicted, such preferences were evident when expecting to perform demanding tasks but not when expecting an undemanding task (Study 2). Study 4 suggests that such preferences for short-term unpleasant affect may be beneficial to performance.     

The imbibing idiot bias: Consuming alcohol can be hazardous to your (perceived) intelligence

Alcohol consumption and cognitive impairment frequently co-occur. We propose that the relationship is so familiar that exposure to alcohol cues primes expectations of cognitive impairment. Across five studies, we find that in the absence of any evidence of reduced cognitive performance, people who hold an alcoholic beverage are perceived to be less intelligent than those who do not, a mistake we term the imbibing idiot bias. In fact, merely priming observers with alcohol cues causes them to judge targets who hold no beverage at all as less intelligent. The bias is not driven by a belief that less intelligent people are more likely to consume alcohol. We find that the bias may be costly in professional settings. Job candidates who ordered wine during an interview held over dinner were viewed as less intelligent and less hireable than candidates who ordered soda. However, prospective candidates believe that ordering wine rather than soda will help them appear more intelligent.     

An exploratory analysis of the contexts and circumstances of filicide‐suicide in Chicago, 1965–1994

Filicide is the killing of a ward by a parent. Relative to many other types of homicide, filicide is an infrequent event. Filicide followed by the offender's suicide is less frequent still. The contexts and circumstances surrounding filicide‐suicide may nevertheless provide insight into parental psychology. Some research suggests, for example, that filicidal genetic parents are more likely to commit suicide than are filicidal stepparents. Five hypotheses are tested for this study, using a database that includes incident‐level information on over 22,000 homicides committed in Chicago during the years 1965–1994. Findings do not support the hypothesis of differential risk of suicide following filicide by genetic parents and stepparents. Previous work is replicated, indicating that: (1) filicides that include multiple victims are more likely to end in the offender's suicide than are filicides that include a single victim, (2) parents are more likely to commit suicide following a filicide of an older child than a filicide of a younger child, (3) older parents, relative to younger parents, are more likely to commit suicide following filicide, and that (4) fathers, relative to mothers, are more likely to commit suicide following filicide. Discussion suggests future directions for research that can inform our understanding of filicide and of filicide‐suicide. Aggr. Behav. 00:000–000, 2005. © 2005 Wiley‐Liss, Inc.     

Intelligence and neural efficiency: The influence of task content and sex on the brain–IQ relationship

In studying physiological correlates of human intelligence, new brain imaging techniques like positron emission tomography (PET) and electroencephalography (EEG) mapping methods focus on the level and topographical distribution of cortical activation. Actually, there is strong empirical evidence that more intelligent individuals display a more focused cortical activation during cognitive performance resulting in lower total brain activation than in less intelligent individuals (i.e., neural efficiency hypothesis). Former studies have used only single, homogeneous tasks and most of the studies have been performed using males. Therefore, here the influence of different task content and of sex on the relationship between intelligence and cortical activation has been tested. In a sample of 26 males and 25 females, we administered verbal, numerical, and figural versions of a well-known elementary cognitive task, the so-called Posner task. Our results suggest a comparatively low cortical activation in brighter as compared to less intelligent individuals but this expected neural efficiency pattern interacted with sex and task content: In the verbal Posner task, the females were more likely to produce cortical activation patterns in line with the neural efficiency hypothesis, whereas in the figural task, primarily the males displayed the expected inverse relationship between IQ and cortical activation.     

Contingent Weighting in Self-Other Decision Making

Three studies are presented that examine the decision-making processes that lead advisors to have preferences distinct from personal decision makers (Kray & Gonzalez, 1999). Advising and personal decision making were hypothesized to invoke different interpersonal frames, which lead to different weighting of decision attributes. Alternatively, advisors might simply exert less effort in decision making for others than do personal decision makers. In Study 1, the contingent weighting of attributes was examined in two decision-making tasks (choice vs. matching). Advisors were more likely to choose in a manner consistent with "what most people would prefer" than personal decision makers, but no differences in preferences were observed in the matching task. Advisors subsequently reported experiencing less regret and blame and more strongly preferred the chosen alternative than did personal decision makers. In Study 2, advisors considered more decision attributes to be important in the abstract compared to personal decision makers, and the choice pattern of Study 1 was replicated. In Study 3, advisors and personal decision makers generated more considerations when making a decision compared to individuals making decisions in the abstract. Finally, the preferences of personal decision makers were more consistent with their reported attribute importance judgments than were those of advisors. In total, the results suggest advisors incorrectly infer others' preferences, rather than suffer from a deficit of motivation, when giving advice. Copyright 2000 Academic Press.     

Happiness in modern society: Why intelligence and ethnic composition matter

Recent developments in evolutionary psychology suggest that living among others of the same ethnicity might make individuals happier and further that such an effect of the ethnic composition on life satisfaction may be stronger among less intelligent individuals. Data from the National Longitudinal Study of Adolescent Health showed that White Americans had significantly greater life satisfaction than all other ethnic groups in the US and this was largely due to the fact that they were the majority ethnic group; minority Americans who lived in counties where they were the numerical majority had just as much life satisfaction as White Americans did. Further, the association between ethnic composition and life satisfaction was significantly stronger among less intelligent individuals. The results suggest two important factors underlying life satisfaction and highlight the utility of integrating happiness research and evolutionary psychology.     

The effect of attractiveness on food sharing preferences in human mating markets

The current study explored how physical attractiveness affects food sharing by studying payment preferences for hypothetical romantic dinner dates (a hypothetical mating market). We analyzed payment preferences, self-rated attractiveness, and rated attractiveness for hypothetical dates in 416 participants. We hypothesized that (1) men would be more likely to prefer to pay than would women, (2) attractive individuals of both sexes would be less willing to pay, and (3) preferences to enter an exchange would be influenced by the attractiveness of prospective partners such that (3a) men would prefer to pay for attractive women, and (3b) women would prefer to be paid for by attractive men. All hypotheses were supported by our results. Individuals with higher self-rated attractiveness were more likely to prefer that their date would pay for the meal, and we found clear sex differences in how the attractiveness of potential dates affected payment preferences. Male participants preferred to pay for dates that had higher facial attractiveness, while female participants preferred that attractive men would pay. Individuals show condition dependent financial preferences consistent with the provisioning hypothesis in this mating market that are adaptive to evaluations of their own quality and that of prospective partners.     

Characterization of the Practice and Attitudes of Genetic Counselors with Doctoral Degrees

Potential advantages and disadvantages of doctoral training in genetic counseling have been debated. In this study, individual interviews were conducted to characterize the practice and attitudes of genetic counselors who have achieved doctoral degrees in any field. Participants (N=31) were more likely to spend time in research and less likely to spend time in clinic than genetic counselors in general. Advantages identified by participants were consistent with theorized advantages, and included increased knowledge, wider research roles, additional opportunities and greater respect. Disadvantages identified by participants focused more on individual perspectives than previously theorized profession-wide disadvantages. These included increased time commitment and decreased patient contact. The attitudes of participants towards the development of doctoral training in genetic counseling were generally positive. The results suggest that doctoral training in genetic counseling would have more benefits than drawbacks for individuals pursuing this degree.     

Are Conservatives Less Likely to be Prosocial Than Liberals? From Games to Ideology,Political Preferences and Voting

Do political preferences reflect individual differences in interpersonal orientations? Are conservatives less other‐regarding than liberals? On the basis of past theorising, we hypothesised that, relative to individuals with prosocial orientations, those with individualistic and competitive orientations should be more likely to endorse conservative political preferences and vote for conservative parties. This hypothesis was supported in three independent studies conducted in Italy (Studies 1 and 2) and the Netherlands (Study 3). Consistent with hypotheses, a cross‐sectional study revealed that individualists and competitors endorsed stronger conservative political preferences than did prosocials; moreover, this effect was independent of the association between need for structure and conservative political preferences (Study 1). The predicted association of social value orientation and voting was observed in both a four‐week (Study 2) and an eight‐month (Study 3) longitudinal study. Taken together, the findings provide novel support for the claim that interpersonal orientations, as measured with experimental games rooted in game theory, are important to understanding differences in ideology at the societal level. Copyright © 2011 John Wiley & Sons, Ltd.     

Sex ratio and mate preferences: a cross‐cultural investigation

Sex ratio is the number of men per 100 reproductive‐age women within a specified mating pool. We generated and tested two hypotheses about the cross‐cultural relationships between sex ratio and mate preferences using preference ratings of 18 characteristics provided by 9809 participants and corresponding sex ratio data secured from an international organization. The Classical Sex Ratio Mate Preference Shifts Hypothesis predicts that in imbalanced sex ratio societies, the more numerous sex will lower their standards, to facilitate acquisition of a partner of the less numerous sex. The Alternative Sex Ratio Mate Preference Shifts Hypothesis predicts that in lower sex ratio societies, men will lower their standards to secure more short‐term matings, whereas women will raise their standards to avoid deception by men seeking short‐term relationships. Results supported the Classical Sex Ratio Mate Preference Shifts Hypothesis for men, and the Alternative Sex Ratio Mate Preference Shifts Hypothesis for women. Discussion addresses limitations of the current research and highlights future directions for research on the relationships between sex ratio and mating psychology and behavior. Copyright © 2006 John Wiley & Sons, Ltd.