Personality in Barbary macaques (Macaca sylvanus): Temporal stability and social rank

Tracing the evolutionary origins of species-specific personality structures requires comparative personality research. We used a 51 item questionnaire to examine the personality structure of 26 semi-free-ranging Barbary macaques assessed at two time points. Principal-components analysis revealed four dimensions: Friendliness, Activity/Excitability, Confidence, and Opportunism. These dimensions were reliable across raters, stable over time, and both similar to and different from the personality dimensions of free-ranging rhesus macaques and male Hanuman langurs. We modeled the relationships between Confidence and a behavioral measure of rank at both time points. The stability of rank over time could be explained by Confidence but not vice versa. These findings highlight how interspecies differences in personality structure reflect personality evolution and how rank is related to personality.     

Personality and behavioral outcomes associated with risk-taking are accurately inferred from faces

Growing evidence suggests that people are able to accurately infer some personality traits and behavioral outcomes from facial photographs. However, little research has examined whether people are able to accurately infer personality traits or behavioral outcomes associated with risk-taking. In this study, we examined whether people were able to accurately infer, on average, others’ personality traits associated with risk-taking from facial photographs. We further examined whether such first impressions were associated with relevant and important behavioral outcomes—specifically, future discounting and gambling and problem gambling tendencies. Results suggest that people are able to accurately infer, on average, some personality traits and behavioral outcomes associated with risk-taking from faces.     

You are what you tweet: Personality expression and perception on Twitter

Microblogging services such as Twitter have become increasingly popular in recent years. However, little is known about how personality is manifested and perceived in microblogs. In this study, we measured the Big Five personality traits of 142 participants and collected their tweets over a 1-month period. Extraversion, agreeableness, openness, and neuroticism were associated with specific linguistic markers, suggesting that personality manifests in microblogs. Meanwhile, eight observers rated the participants’ personality on the basis of their tweets. Results showed that observers relied on specific linguistic cues when making judgments, and could only judge agreeableness and neuroticism accurately. This study provides new empirical evidence of personality expression in naturalistic settings, and points to the potential of utilizing social media for personality research.     

Impressions of World of Warcraft players’ personalities based on their usernames: Interobserver consensus but no accuracy

Millions of people interact in the context of massively-multi-player-online-role-play-games (MMORPGs). Here we address whether MMORPG usernames convey accurate information about users’ personalities. Impressions based on email addresses show some accuracy but MMORPG’s are different because they provide little accountability, with little expectation that users will ever meet in person. We assessed consensus and accuracy in impressions based on 1357 (153 females) World of Warcraft users. Ratings of the usernames in terms of the Big Five dimensions yielded strong consensus (mean ICC = .46) but low accuracy (mean r = .01). Lens-model analysis suggest that features of the usernames have little validity, but observers used them anyway. Discussion focuses on why results might differ from those based on email addresses.     

Examining the relationship between self-reported compliance and psychopathic personality traits

The relationship between antisocial traits and forensically-relevant compliance is equivocal, perhaps due to the heterogeneity of antisocial traits. In an effort to better understand this relationship, the current study used the construct of psychopathy as a means of parsing this heterogeneity. Specifically, the relationship between psychopathy as captured by the Psychopathic Personality Inventory-Revised (PPI-R; Lilienfeld & Widows, 2005) and compliance measured by the Gudjonsson Compliance Scale (GCS; [Gudjonsson, 1989] and [Gudjonsson, 1997]) among a sample of university students (n = 131) was explored. Results revealed that total scores on the PPI-R were unrelated to compliance. However, specific facets of the PPI-R were related to the GCS, but in opposite directions. This might explain inconsistent findings in the extant literature. The findings stemming from the study provide insights into the relationship between antisocial traits and forensically-relevant compliance and offer direction to future efforts aimed at understanding this relationship. Implications for these distinct relationships in the context of false confessions are discussed.     

Fathers’ personality and its interaction with children’s personality as predictors of perceived parenting behavior six years later

We investigated fathers’ personality and its interaction with children’s personality as predictors of adolescent perceived parenting behavior. Data were used from the Flemish Study on Parenting, Personality and Development including 353 children. At Time 1 fathers rated their personality whereas teachers rated the child’s personality. Six years later, adolescents rated their fathers’ parenting. Higher levels of paternal Emotional Stability were associated with less perceived overreactive and more positive parenting behaviors only when children were high on Extraversion, Benevolence, Conscientiousness, Emotional Stability and Imagination. This study is of theoretical interest because the results demonstrate that different forms of parenting are associated with goodness-of-fit relations between parent and child personality and that these relations are different for negative and positive parenting.     

A putatively general factor of personality (GFP) is not so general: A demonstration with the NEO PI-R

Recent research suggests that a general factor of personality (GFP) represents the zenith of a hierarchy of personality structure. For a roommate sample of 602 students, we evaluate the presence and validity of a general factor of personality in a Big Five measure. Findings indicate that a first factor, similar to what has been putatively labeled a GFP, can be extracted from self-report and observer-report, that this self-report first factor has validity for predicting an alleged observer-report GFP, and that this validity is not attributable to socially desirable responding. However, despite the existence of a valid first factor, it is not a general factor of personality because it fails to summarize adequately the complete systematic variance in the structure of personality.     

Personality effects on experiential consumption

This study examines the relationship between personality and experiential consumption. A research model was constructed through the use of the personality traits as exogenous and the experiential-activity preferences as endogenous variables. The necessary data were collected from 1000 individuals in 2011 in Norway using questionnaires. The research model was subsequently tested utilising partial least squares path modelling. The results indicated that each of the five personality traits exerts significant influence on one or several of the experiential-activity preferences even having controlled for socio-demographic data. Openness is however the personality trait that appears to be associated with most of the experiential-activity preferences. Overall the study results suggest that personality is a highly relevant psychological construct for the study of experiential consumption as well.     

The higher-order factor structures of five personality inventories

This study examined the internal higher-order structures of five personality inventories (the Hogan Personality Inventory, the Occupational Personality Questionnaire, the Sixteen Personality Factor Questionnaire, the Personality and Preferences Inventory, Profile Match). A sample of 356 individuals from the UK working population completed various combinations of the five inventories. Overall, the results indicated sensible and interpretable factor structures for the inventories. Cross-inventory factor analyses of the extracted factors revealed a variant of the Big Five model underpinning them, enabling examination of inventory convergence and divergence. Our study also examined and compared representations of the General Factor of Personality in each of the inventories.     

A protean approach to social influence: Dark Triad personalities and social influence tactics

To avoid detection, those high on Dark Triad traits (i.e., narcissism, psychopathy, and Machiavellianism) may adopt a protean approach to interpersonal influence. We show the Dark Triad traits correlate with a number of unique tactics of influence (Study 1; N = 259). We show this protean approach was insensitive to differences in targets of manipulation (Study 2; N = 296). When forced to choose one tactic to solve different adaptive problems, the Dark Triad traits were correlated with unique tactical choices (Study 3; N = 268). We show these associations are generally robust to controlling for the Big Five and participants’ sex (Study 1 and 2). We discuss the theoretical implications of these findings for both life history and cheater-detection theories.