Empirical, theoretical, and practical advantages of the HEXACO model of personality structure.

The authors argue that a new six-dimensional framework for personality structure--the HEXACO model--constitutes a viable alternative to the well-known Big Five or five-factor model. The new model is consistent with the cross-culturally replicated finding of a common six-dimensional structure containing the factors Honesty-Humility (H), Emotionality (E), eExtraversion (X), Agreeableness (A), Conscientiousness (C), and Openness to Experience (O). Also, the HEXACO model predicts several personality phenomena that are not explained within the B5/FFM, including the relations of personality factors with theoretical biologists' constructs of reciprocal and kin altruism and the patterns of sex differences in personality traits. In addition, the HEXACO model accommodates several personality variables that are poorly assimilated within the B5/FFM.     

The prediction of Honesty–Humility-related criteria by the HEXACO and Five-Factor Models of personality

We examined two questions involving the relative validity of the HEXACO and Five-Factor Models of personality structure. First, would the HEXACO model outpredict the Five-Factor Model (FFM) with regard to several diverse criteria that are conceptually relevant to the Honesty–Humility dimension of personality? If so, would the addition of a proxy Honesty–Humility scale—as computed from relevant facets of the FFM Agreeableness domain—allow the FFM to achieve predictive validities matching those of the HEXACO model? Results from self- and observer ratings in three samples (each N > 200) indicated that the HEXACO model showed considerable predictive validity advantages over the FFM. When a measure of Honesty–Humility derived from the FFM was added to the original five domains of that model, the predictive validity reached that of the HEXACO model for some criteria, but remained substantially below for others.     

The HEXACO and five-factor models of personality in relation to RIASEC vocational interests

The current study extended the empirical research on the overlap of vocational interests and personality by (a) testing hypothesized relations between RIASEC interests and the personality dimensions of the HEXACO model, and (b) exploring the HEXACO personality model's predictive advantage over the five-factor model (FFM) in capturing RIASEC interests. Results of correlations based on a sample of 437 college students (157 men and 280 women) revealed support for eight of 21 hypothesized HEXACO–RIASEC relations for men and nine of 21 for women. Results of multiple regressions revealed that HEXACO accounted for more variance in RIASEC interests than did the FFM, and that HEXACO accounted for significant incremental variance beyond that explained by the FFM in four of six RIASEC interests for men and in five of six RIASEC interests for women.     

Trait Variance and Response Style Variance in the Scales of the Personality Inventory for DSM–5 (PID–5)

Using self- and observer reports on the Personality Inventory for DSM–5 (PID–5) and the HEXACO Personality Inventory–Revised (HEXACO–PI–R), we identified for each inventory several trait dimensions (each defined by both self- and observer reports on the facet-level scales belonging to the same domain) and 2 source dimensions (each defined by self-reports or by observer reports, respectively, on all facet-level scales). Results (N = 217) showed that the source dimensions of the PID–5 were very large (much larger than those of the HEXACO–PI–R), and suggest that self-report (or observer report) response styles substantially inflate the intercorrelations and the alpha reliabilities of the PID–5 scales. We discuss the meaning and the implications of the large PID–5 source components, and we suggest some methods of controlling their influence.     

Predicting Workplace Delinquency and Integrity with the HEXACO and Five-Factor Models of Personality Structure

Recent lexical studies of personality structure suggest that there are 6, not just 5, basic dimensions of human personality variation. The most distinguishing feature of this new 6-dimensional structure, known as the HEXACO model, is the addition of a new factor named Honesty-Humility. We demonstrate that this new dimension has important implications in personnel psychology. Specifically, the HEXACO model substantially outperformed the Five-factor model (FFM) in predicting workplace delinquency based on samples obtained in 3 different countries, namely, Australia, Canada, and the Netherlands. In addition, the HEXACO model substantially outperformed the FFM in predicting scores on an overt integrity test, due to the inclusion of the Honesty-Humility dimension.     

Comparing the Eysenck and HEXACO Models of Personality in the Prediction of Adult Delinquency

Drawing from self and peer reports of personality, the present study compares the structures of the HEXACO and Eysenck models of personality and the models' capacity to predict self reported acts of delinquency. Correlations amongst scales revealed that Psychoticism captures elements of both HEXACO Emotionality and Conscientiousness. The Eysenck Lie scale correlated positively with both self and peer reported HEXACO Honesty–Humility and Conscientiousness, suggesting that this validity scale includes substantive variance relating to the latter factors. Regression analyses of personality data from both rater sources revealed that Honesty–Humility and Psychoticism were strong predictors of delinquency that independently offered substantial incremental validity. For self reports, the Extraversion and Lie scales were also strong unique predictors of delinquency. Copyright © 2011 John Wiley & Sons, Ltd.     

Predicting domain‐specific risk taking with the HEXACO personality structure

Although risk taking traditionally has been viewed as a unitary, stable individual difference variable, emerging evidence in behavioral decision‐making research suggests that risk taking is a domain‐specific construct. Utilizing a psychological risk‐return framework that regresses risk taking on the perceived benefits and perceived riskiness of an activity (Weber & Milliman, 1997 ), this study examined the relations between risk attitude and broad personality dimensions using the new HEXACO personality framework (Lee & Ashton, 2004 ) across four risk domains. This personality framework, which has been replicated in lexical studies in over 12 natural languages, assess personality over six broad personality dimensions, as opposed to the traditional Five‐Factor Model, or “Big Five.” Through path analysis, we regressed risk taking in four separate domains on risk perceptions, perceived benefits, and the six HEXACO dimensions. Across all risk domains, we found that the emotionality dimension was associated with heightened risk perceptions and high conscientiousness was associated with less perceived benefits. We also report several unique patterns of domain‐specific relations between the HEXACO dimensions and risk attitude. Specifically, openness was associated with risk taking and perceived benefits for social and recreational risks, whereas lower honesty/humility was associated with greater health/safety and ethical risk taking. These findings extend our understanding of how individuals approach risk across a variety of contexts, and further highlight the utility of honesty/humility, a dimension not recovered in Big Five models, in individual differences research. Copyright © 2010 John Wiley & Sons, Ltd.     

The HEXACO model of personality structure and indigenous lexical personality dimensions in Italian,Dutch, and English

We correlated the scales of the HEXACO Personality Inventory (HEXACO-PI) with adjective scale markers of personality factors previously obtained in indigenous lexical studies of personality structure in the Italian, Dutch, and English languages. Self-ratings were obtained from samples of 327 Italian, 161 Dutch, and 214 English-speaking Canadian participants. Results showed that each of the six HEXACO variables—including Honesty–Humility—correlated strongly with its hypothesized six-factor adjective scale counterpart in all three languages. In each case, convergent correlations were substantially stronger than discriminant correlations. Because the HEXACO model was developed without prior knowledge of the indigenous Dutch and English lexical factors, the results suggest that the HEXACO model of personality structure can be extended to the personality lexicons of those languages.     

A multi-informant study of the influence of targets’ and perceivers’ social desirability on self-other agreement in ratings of the HEXACO personality dimensions

In the current research we evaluated the impact of socially desirable responding on the strength of self-other agreement in personality judgments. We used a multi-informant design with self- and other-reports of HEXACO personality dimensions as well as self-reported and other-reported social desirability. Analyses were based on 305 primary participants and 709 informants. As shown by the results, neither self-other agreement nor other-other agreement regarding the personality dimensions was affected by social desirability. Furthermore, significant correlations between self-rated and other-rated social desirability emerged. The results are discussed as further evidence that most social desirability scales seem to measure substantive personality traits instead of response styles.     

The structure of emotional expressivity: each emotion counts

Several models of the dimensionality of emotional expressivity were examined in a multitrait-multimethod study. Targets and peer raters completed measures of the target's emotional expressivity (Berkeley Expressivity Questionnaire. BEQ; J. J. Gross & O. P. John, 1995; and a measure of emotion-specific expression) and the Big 5 personality dimensions. The results of structural equation modeling and analysis of variance revealed that an emotion-specific model was superior to models of valence-specific or unidimensional expressivity. The distinct emotions differed in their relations with the dimensions of the 5-factor model. These results were corroborated by self- and other reports. Finally, the degree of convergence between self- and other ratings differed between emotions, demonstrating the multidimensional character of emotional expressivity.     

Asymmetry in judgments of personality: others are less differentiated than the self

Previous evidence suggests that judges rely more heavily on implicit personality theories when they rate relatively unfamiliar others. One further implication of this evidence is that correlations among traits should be stronger in other ratings than in self-ratings, particularly when (a) judges lack trait relevant information and/or (b) motivational accuracy is low. We tested these predictions by comparing self- versus other ratings on the Big Five in two studies. Study 1 used previously published data to demonstrate clear self/peer differences in the average relations between Big Five dimensions (excluding Extraversion). Study 2 was based on self- versus other ratings in 12 samples. Overall, the intercorrelations among Big Five traits (excluding Extraversion) tended to be significantly stronger in peer ratings than in self-ratings. The most consistent effect involved the relation between Neuroticism and Agreeableness (overall r=-.43 and -.29 in the peer ratings and self-ratings, respectively). In addition, as expected, the degree of relation among traits varied depending upon the type of target being rated (i.e., spouse vs. dating partner vs. friend vs. stranger). Implications of these findings are discussed.     

Personality and the Likelihood to Sexually Harass

To identify personality traits associated with sexual harassment proclivities, scales that measure the Likelihood to Sexually Harass (LSH) and personality traits were administered to 150 respondents. Peer reports of personality were also obtained from respondents' acquaintances. The Big Five factors and a newly suggested major dimension of personality, named Honesty–Humility, were measured to represent respondents' personalities. Two major findings were obtained. First, as predicted, Honesty–Humility was more strongly associated with sexual harassment proclivities than were any of the Big Five, within both self- and peer reports. Second, among the Big Five, only peer-reported Intellect/Imagination (i.e., Openness to Experience) contributed to the prediction of LSH independently of Honesty–Humility. The importance of using an optimal framework of personality structure was discussed.     

More than the Big Five: Egoism and the HEXACO model of personality

Egoism is a personality trait that is associated with self‐enriching and self‐centred behaviours. Research has suggested that egoism lies beyond the Big Five personality factors. Recently, the HEXACO model of personality has been proposed as an alternative to the Big Five model. In three studies, the relation between the HEXACO Personality Inventory and egoism, conceptualized using three different questionnaires (DPQ Egoism, SPI Egotism and the Egoism Scale), is investigated. In all three studies, the HEXACO Honesty–Humility factor scale was the most important predictor of egoism. Additionally, in two studies in which FFM measures were used, the HEXACO Personality Inventory explained more variance in egoism than did the FFPI (Study 2) and the NEO‐PI‐R (Study 3). Copyright © 2009 John Wiley & Sons, Ltd.     

Are Dishonest Extraverts More Harmful than Dishonest Introverts? The Interaction Effects of Honesty‐Humility and Extraversion in Predicting Workplace Deviance

Honesty‐Humility, one of the six major personality dimensions included in the HEXACO model of personality structure, has previously been found to show negative correlations with workplace deviance. In this study, we hypothesised that Extraversion would moderate the relationship between Honesty‐Humility and workplace deviance. In particular, we posited that the relation between Honesty‐Humility and workplace deviance would be stronger among employees who are high on Extraversion than among those low on Extraversion. The hypothesis was tested using three different samples across Australia, Canada, and the Netherlands. It was found in two of the three samples that high levels of Extraversion did indeed amplify the relationship between (low) Honesty‐Humility and workplace deviance. Results suggest a potentially important role for multiplicative effects of personality variables on workplace criteria.     

Honesty–Humility and the HEXACO Structure of Religiosity and Well-Being

Past research has shown that general and intrinsic religiosity is related to higher Big Five Agreeableness, Conscientiousness and, to some extent, Extraversion. With the rise of the six-factor HEXACO (Honesty–Humility, Emotionality, eXtraversion, Agreeableness, Conscientiousness, Openness) model of personality, however, a more differentiated look at religiousness and personality is called for. It has been suggested that religiosity is more associated with Honesty–Humility than with Agreeableness. The new personality factor, Honesty–Humility has also been shown to have null or weak relations with happiness. In 5 studies involving 1375 participants from Iran, Poland, and Malaysia, the relations of Honesty–Humility and other HEXACO dimensions to religious orientation and well-being outcomes were investigated. As expected, Honesty–Humility was one of the strongest personality correlate of religiosity. Higher scores on religiousness were also associated with Agreeableness, Conscientiousness, and to some extent, Extraversion showing that the main personality characteristics of religiosity are consistent across religious contexts and personality models. Relations of Honesty–Humility to psychological well-being scales were consistently positive and stronger than its relations to subjective well-being measures, suggesting that Honesty–Humility may not be “bad” for pleasure attainment and pain avoidance, but it is definitely “good” for living a virtuous, fully functioning life.     

The relationship between five-factor personality measurements and ICD-10 personality disorder dimensions: results from a sample of 229 subjects

This article examines the relationship between the five-factor model (FFM) and dimensional ICD-10 personality disorders. In a follow-up study of a child and adolescent psychiatric cohort, former patients and controls were assessed with NEO-FFI and the IPDE interview (CD-10 personality disorder). Full data were available for 229 subjects (149 former patients, 80 controls). Multiple regression analysis showed that the five factors of the FFM as independent variables explained between 5% (schizoid personality disorder) and 32% (anxious personality disorder) of the variance of ICD-10 dimensional personality disorder scores. For the two types of emotionally unstable personality disorder dimension (impulsive and borderline), for anxious (avoidant) personality disorder dimension and for the total score of any personality disorder dimension, FFM explained between 17% and 32% of the variance with almost identical results for the former patient group and the control group. High neuroticism was a feature of paranoid, emotionally unstable, histrionic, anankastic, anxious (avoidant), and dependent personality disorder dimensions, whereas low agreeableness was found in dissocial, emotionally unstable and histrionic personality disorder dimensions. Low extraversion was found in schizoid, anxious (avoidant) and dependent personality disorder dimensions, whereas histrionic PD dimension correlated with high extraversion. We find that the FFM is valuable for the further understanding not only of DSM-IV but also of ICD-10 personality disorder dimensions. The differences between ICD-10 and DSM-IV in this respect seem to be small.     

Genetic and Environmental Influences on Personality: A Study of Twins Reared Together Using the Self- and Peer Report NEO-FFI Scales

ABSTRACT Previous behavior-genetic research on personality has been almost exclusively based on self-report questionnaire measures. The purpose of this research was to measure personality constructs via self- and peer reports on the items of the NEO Five-Factor Inventory (Costa & McCrae, 1989). The sample included 660 monozygotic and 200 same sex and 104 opposite sex dizygotic twin pairs. We collected self- and two independent peer reports for each of the twins. Our analysis of self-report data replicates earlier findings of a substantial genetic influence on the Big Five (h²= .42 to .56). We also found this influence for peer reports. Our results validate findings based solely on self-reports. However, estimates of genetic contributions to phenotypic variance were substantially higher when based on peer reports (h²= .51 to .81) or self- and peer reports (h²= .66 to .79) because these data allowed us to separate error variance from variance due to nonshared environmental in-fluences. Correlations between self- and peer reports reflected the same genetic influences to a much higher extent than identical environmental effects.     

German lexical personality factors: relations with the HEXACO model

We correlated the scales of the HEXACO Personality Inventory (HEXACO‐PI) with adjective scale markers of factors previously obtained in indigenous lexical studies of personality structure in the German language. Self‐ratings obtained from a sample of 323 German participants showed a pattern of strong convergent and weak discriminant correlations, supporting the content‐based interpretation of the German lexical factors in terms of the HEXACO dimensions. Notably, convergent correlations were strong for both the broader and the narrower variants of the Honesty‐Humility factor as observed in German lexical studies. Also, convergent correlations for HEXACO Openness to Experience were, as expected, stronger for German adjectives describing a creative and intellectual orientation than for German adjectives describing intellectual ability. Copyright © 2006 John Wiley & Sons, Ltd.