Evidence for the Scarr-Rowe Effect on Genetic Expressivity in the Health and Retirement Study.

The Scarr-Rowe effect is a gene × environment interaction, which is characterized by a negative association between exposure to low socioeconomic status (SES) environments and the additive heritability of cognitive ability. Utilizing a polygenic score for educational attainment (EA3), it was found that the two-way interaction between EA3 and parental educational attainment (EA; used as a proxy for parental SES) was a significant positive predictor of participants' composite cognitive ability (IQ) score (ß = .018, SE = .008, p = .028) after controlling hierarchically for the direct effects of (population-stratification-controlled) EA3, parental EA, and 20 distinct interaction terms (10 involving the interactions between the principal components [PCs] and EA3, and 10 involving the interaction between the PCs and parental EA). The presence of this interaction is consistent with the Scarr-Rowe effect, as the expressivity of EA3 on cognitive ability increases with increasing parental EA. No statistically significant sex differences in the effect magnitudes were found, although the effect was significantly present in the female but not male sample.

MATERNAL SENSITIVITY AND PERFORMANCE AND VERBAL INTELLIGENCE IN LATE CHILDHOOD AND ADOLESCENCE.

The aim of this study was to investigate the association between maternal sensitivity and offspring intelligence in late childhood and adolescence. Secondary data (N=117) from the Block and Block (2006a, b) 30-year longitudinal study of Californian children, which began in the late 1960s, was used to test the hypothesis that maternal sensitivity in childhood would be predictive of late childhood and adolescent intelligence. Correlational analyses revealed that maternal sensitivity, as judged by raters viewing mother's interactions with their children in a set of four joint structured cognitive tasks when the child was 5 years of age, was associated with verbal and performance IQ test scores when the children were ages 11 and 18. Using hierarchical regression to control for child sex, socioeconomic status, child temperament, child baseline IQ (as measured at age 4), mother's level of education and mother's emotional nurturance, it was found that the maternal sensitivity and child and adolescent IQ association held for verbal, but not performance IQ. Furthermore, a pattern emerged in which the association between maternal sensitivity and verbal IQ was stronger for adolescents with a lower baseline IQ. The results suggest that maternal sensitivity is associated with offspring verbal intelligence and that this association holds when numerous variables are accounted for. Additionally, this association may be stronger for children with lower IQs.

Overlap Between the General Factor of Personality and Trait Emotional Intelligence: A Genetic Correlation Study.

A previous meta-analysis (Van der Linden et al., Psychol Bull 143:36-52, 2017) showed that the General Factor of Personality (GFP) overlaps with ability as well as trait emotional intelligence (EI). The correlation between trait EI and the GFP was so high (ρ = 0.88) in that meta-analysis that these two may be considered virtually identical constructs. The present study builds on these findings by examining whether the strong phenotypic correlation between the GFP and trait EI has a genetic component. In a sample of monozygotic and dizygotic twins, the heritability estimates for the GFP and trait EI were 53 and 45%, respectively. Moreover, there was a strong genetic correlation of r = .90 between the GFP and trait EI. Additional analyses suggested that a substantial proportion of the genetic correlations reflects non-additive genetic effects (e.g., dominance and epistasis). These findings are discussed in light of evolutionary accounts of the GFP.

How Universal Is the General Factor of Personality? An Analysis of the Big Five in Forager Farmers of the Bolivian Amazon.

In various personality models, such as the Big Five, a consistent higher order general factor of personality (GFP) can be identified. One view in the literature is that the GFP reflects general social effectiveness. Most GFP studies, however, have been conducted in Western, educated, industrialized, and rich democracies (WEIRD). Therefore, to address the question of the universality of the GFP, we test whether the GFP can also be identified in a preliterate indigenous sample of Tsimane by using self-reports, spouse reports, and interviewer ratings. In the Tsimane, a viable GFP could be identified and the intercorrelations between personality traits were significantly stronger than in samples from industrial countries. The GFP correlated with the ratings of social engagement. In addition, self and spouse ratings of the GFP overlapped. Overall, the findings are in line with the notion that the GFP is a human universal and a substantive personality factor reflecting social effectiveness.

Reply to Van Lange et al.: Proximate and ultimate distinctions must be made to the CLASH model.

Transcending reviewed proximate theories, Van Lange et al.'s CLASH model attempts to ultimately explain the poleward declension of aggression and violence. Seasonal cold is causal, but, we contend, principally as an ecologically relevant evolutionary pressure. We further argue that futurity and restraint are life history variables, and that Life History Theory evolutionarily explains the biogeography of aggression and violence as strategic adaptation.

Using the California Q-sort Measure of Life History Strategy to Predict Sexual Behavioral Outcomes.

The validity of the California Q-set measure of life history (LH) strategy was examined by conducting secondary analyses on longitudinal data that included the Q-sort measure of LH strategy at multiple ages (base year N = 106) and six measures of reproductive behavior. LH strategy Q-sort ratings showed stability from ages 14-23. Additionally, the ratings were found to be good prospective and age concurrent predictors of six reproductive behaviors. LH strategy as rated at age 14 was found to be a significant predictor of age of sexual debut, number of sexual partners, frequency of intercourse, number of abortions, age at birth of first child, and likelihood for having contracted venereal disease as measured up to age 32. Future research should test the further utility of the measure focusing on ways to reduce its cumbersomeness without reducing its ability to predict behavioral outcomes.

Blasphemy or art: what art should be censored and who wants to censor it?

Current events have marked the increasing tension between freedom of artistic expression and religious tolerance and sensitivity. While there have been several controversies in the West concerning art critical of Christianity, a more complex dynamic has arisen as some Western artists have created art critical of Islam. Research was undertaken to examine what aspects of artwork lead to the most aversive reactions and desire to ban art and individual differences in response to controversial art. Of particular interest was the response to artwork critical of Christianity in comparison to artwork critical of Islam. Studies 1 and 2 suggest that the artwork that mixes the sacred and profane (whether critical of Christianity or Islam) is particularly likely to elicit a negative emotional response and is more likely to be the target for censorship. Also consistent across Studies 1 and 2 individuals who based their moral foundation on purity and have Christian religious beliefs were more likely to endorse banning said artwork. In Study 3 an even more complex picture emerged in which non-Christians were more likely to endorse banning art critical of Islam in comparison to art critical of Christianity.

The General Factor of Personality (GFP) is associated with higher salary, having a leadership position, and working in a social job.

Previous studies have suggested that a general factor exists at the top of the hierarchal structure of personality. One interpretation of this General Factor of Personality (GFP) is that it reflects social effectiveness. Accordingly, in a large employee sample (N = 1267), we tested whether the GFP relates to several outcomes assumed to be linked with social effectiveness. Specifically, we examine whether the GFP is positively related to salary and to obtaining a leadership position. Additionally, we test whether high-GFP employees more often work in social occupations. Controlling for demographics and background variables, it was found that the GFP is indeed positively related to monthly (gross) salary. Moreover, employees occupying leadership positions in organizations scored higher on the GFP. GFP scores of employees in more social occupations (e.g., education, health care) were higher than of employees in other types of jobs (e.g., construction). GFP scores were also positively associated with the extent to which one has to relate to others in the job. Overall, the pattern of findings is in line with the notion of the GFP as relating to social effectiveness or adaptiveness, which are assumed to play a significant role in occupational outcomes.

The General Factor of Personality as Ego-Resiliency.

It was originally hypothesized by Block that what has come to be known as the General Factor of Personality (GFP) reflects ego-resiliency. We test Block's hypothesis in two studies. In Study 1 a meta-analysis (N = 15,609) examining the relationship between the GFP and ego-resiliency/resilience was conducted. In Study 2 (N = 157) archival data from Block and Block was used to examine the association between rater judged ego-resiliency across childhood, adolescence, and into early adulthood and the GFP based on self-report in early adulthood. Using structural equation modeling for the meta-analytic data, the correlation between the GFP and ego-resiliency/resilience was estimated at r = 0.93. Using a trait-state occasion model to test the hypothesis in Study 2, the correlation between the GFP and rated ego-resiliency was estimated at r = 0.85. The results of the two studies offer substantial support for Block's original hypothesis. Given the strength of the associations between the GFP and ego-resiliency/resilience one may conclude that the two constructs largely reflect the same underlying phenomenon.

Is there a Meaningful General Factor of Personality?

Numerous studies and meta-analyses have now confirmed that personality traits tend to correlate such that a general factor of personality (GFP) emerges. Nevertheless, there is an ongoing debate about what these correlations, and therefore the GFP, represents. One interpretation is that the GFP reflects a substantive factor that indicates general social effectiveness or emotional intelligence. Another interpretation is that the GFP merely is an artifact based on measurement or response bias. In the present paper, we elaborate on a selection of topics that are central to the debate about this construct. Specifically, we discuss (a) the GFP in relation to more specific personality dimensions (e.g., Big Five, facets), (b) the validity of the GFP and under what circumstances it seems to 'disappear', and (c) the theoretical and practical relevance of the general factor. Overall, the review should provide insight into the nature of the GFP and whether or not it represents a meaningful factor that can contribute to a better understanding of personality.

The Motivation and Opportunity for Socially Desirable Responding Does Not Alter the General Factor of Personality.

Socially desirable responding may affect the factor structure of personality questionnaires and may be one of the reasons for the common variance among personality traits. In this study, we test this hypothesis by investigating the influence of the motivational test-taking context (development vs. selection) and the opportunity to distort responses (forced-choice vs. Likert response format) on personality questionnaire scores. Data from real selection and assessment candidates (total N = 3,980) matched on gender, age, and educational level were used. Mean score differences were found between the selection and development groups, with smaller differences for the FC version. Yet, exploratory structural equation models showed that the overall factor structures as well as the general factor were highly similar across the four groups. Thus, although socially desirable responding may affect mean scores on personality traits, it does not appear to affect factor structures. This study further suggests that the common variance in personality questionnaires is consistent and appears to be little influenced by motivational pressures for response distortion.

The continued assessment of self-continuity and identity.

Studies have found that self-continuity is predictive of a substantial number of important outcome variables. However, a recent series of studies brings into question the traditional method of measuring self-continuity in favor of an alternative (B. M. Baird, K. Le, & R. E. Lucas, 2006). The present study represents a further comparison of measurement methods examining the outcome variables of identity, negative affect, and self-esteem while also exploring the possible moderating roles of culture and relational-interdependent self-construal. The results suggest that the methods yield distinctive results with the new method being associated with negative affect, but not with self-esteem or identity. This finding is especially important for the research in the area of identity because self-continuity is seen as being an essential element of identity and the results suggest that traditional identity concepts and measures are not inclusive of this vital component.

Direct and indirect effects of birth order on personality and identity: support for the null hypothesis.

The authors proposed that birth order affects psychosocial outcomes through differential investment from parent to child and differences in the degree of identification from child to parent. The authors conducted this study to test these 2 models. Despite the use of statistical and methodological procedures to increase sensitivity and reduce error, the authors did not find support for the models. They discuss results in the context of the mixed-research findings regarding birth order and suggest further research on the proposed developmental dynamics that may produce birth-order effects.

The General Factor of Personality and Character: A Reanalysis.

Using data from the Texas Twin Project, it was recently reported that 7 measures of character covaried to the extent that they formed a general factor of character (Tucker-Drob, Briley, Engelhardt, Mann, & Harden, 2016 ). In turn the relationship between the general factor of character and the Big Five personality traits were examined. It was found that personality was associated with the general factor of character primarily through the traits of conscientiousness and openness. For several reasons we propose that a more accurate interpretation of the data is that a Big Five personality traits form a general factor of personality, and that the relationship between the general character factor and personality is primarily through the general factor of personality. The results lend some support to this contention and are discussed in relation to the growing interest in covariation among multiple personality traits.

Overlap between the general factor of personality and emotional intelligence: A meta-analysis.

We examine the relationship between the general factor of personality (GFP) and emotional intelligence (EI) and specifically test the hypothesis that the GFP is a social effectiveness factor overlapping conceptually with EI. Presented is an extensive meta-analysis in which the associations between the GFP, extracted from the Big Five dimensions, with various EI measures is examined. Based on a total sample of k = 142 data sources (N = 36,268) the 2 major findings from the meta-analysis were (a) a large overlap between the GFP and trait EI (r ≈ .85); and (b) a positive, but more moderate, correlation with ability EI (r ≈ .28). These findings show that high-GFP individuals score higher on trait and ability EI, supporting the notion that the GFP is a social effectiveness factor. The findings also suggest that the GFP is very similar, perhaps even synonymous, to trait EI. (PsycINFO Database Record

The role of ego-identity status in mating preferences.

This study was designed to examine the role ego-identity plays in the mating preferences of late adolescents. In addition to examining the variance in mating preferences explained by ego-identity status, it was hoped that the results could assist in testing the competing Sexual Strategies (Buss & Schmitt, 1993) and Social Role (Eagly & Wood, 1999) theories. Ego-identity and the sex of the participant accounted for a significant amount of variance in the number of sexual partners desired and the penchant for short-term mating. The sex of the participant was the lone predictor of the importance placed on the mate characteristics of physical attractiveness and earning capacity with females placing more emphasis on the former and males placing more emphasis on the latter characteristic.

The effect of individual differences and manipulated life expectancies on the willingness to engage in sexual coercion.

The role of the individual difference variables of mate value, short-term and long-term mating preferences, and life history strategy along with the manipulated variable of life expectancy were used to predict differences in the willingness to engage in sexually coercive behaviors. Short-term preferences and long-term preferences were correlated with the willingness to engage in sexual coercion at all life expectancies. Life history strategy was correlated with the willingness to engage in sexual coercion at only the shortest and longest life expectancies. Most importantly short-term and long-term mating preferences interacted with life expectancy to predict the willingness to engage in sexually coercive behaviors. Short life expectancies increased willingness in individuals with high short-term and low long-term preferences. The results are discussed in terms of the varying theories of sexual coercion with emphasis put on a life history approach.

The effect of life expectancy on aggression and generativity: a life history perspective.

Following a model that is inclusive of both dispositional and situational influences on life-history behaviors and attitudes, the effect of life expectancies on aggression and generativity was examined. Consistent with the hypotheses it was found that shorter life expectancies led to an increase in the desire to aggress and a decrease in the desire to engage in generative behaviors. The results are discussed in terms of how life history theory can be used to frame research on person-situation interactions.

The association between thoughts of defecation and thoughts of death.

Three studies were conducted examining the relationship between thoughts of defecation and thoughts of death. In Study 1 and Study 3 it was found that making thoughts of feces salient reduced the accessibility of death thoughts. In Study 2 it was found that making thoughts of death salient decreased the accessibility of feces thoughts. It is proposed that this tendency for keeping thoughts of death and feces separate is part of a broader inclination for keeping the sacred from the profane.