A sixth personality domain that is independent of the Big Five domains: The psychometric properties of the HEXACO Personality Inventory in a Japanese sample

We investigated the reliability of the HEXACO‐Personality Inventory (HEXACO‐PI) using the NEO Five‐Factor Inventory (NEO‐FFI) and the International Personality Item Pool (IPIP) Big Five scales in a Japanese sample of 492 respondents (mean age = 20.4 years). The psychometric properties of the HEXACO‐PI were examined and found to be satisfactory. The results of the factor analysis showed that the six hypothesized personality domains were found independently. A total of 307 participants responded to the NEO‐FFI and the IPIP Big Five scales. The results showed that the five domains of the HEXACO model corresponded to the Five‐Factor domains and were relative to the Big Five personality domains as a whole, but the sixth domain, Honesty‐Humility, showed weak to moderate correlations with some factors of the NEO‐FFI and the IPIP Big Five scales. These results suggest that the Honesty‐Humility domain is independent of the five fundamental personality factors and that the HEXACO‐PI is a useful and reliable questionnaire for investigating personality structure in cross‐cultural and other context.     

Dichotomous Thinking and Personality Traits: From the Viewpoints of the Big Five and HEXACO1,2

Dichotomous thinking is a feature of certain personality traits, such as the Dark Triad and Cluster B personality disorders, which commonly reflect a fast life history strategy. The Big Five and HEXACO personality models are useful for understanding the personality structure and individual differences in life history strategy. Our study aimed to shed light on the propensity for dichotomous thinking using the framework of the Big Five and HEXACO personality models. Participants (n = 229) completed the Dichotomous Thinking Inventory, the 60-item HEXACO Personality Inventory – Revised, and the Ten-Item Personality Inventory. We examined correlations between dichotomous thinking and each domain of the Big Five and HEXACO personality models, and then computed multiple correlations predicting total and dimensional scores on the propensity for dichotomous thinking with scores on the Big Five and HEXACO personality traits. Results indicated that dichotomous thinking tendency is characterized by the set of low Agreeableness and Honesty–Humility. This study suggests that dichotomous thinking has antagonistic characteristics and a linkage to the fast life history strategy.     

Personality Traits Beyond the Big Five: Are They Within the HEXACO Space?

Paunonen (2002) recently developed the Supernumerary Personality Inventory (SPI), a measure of 10 traits that have low loadings within the space of the Big Five personality factors. If the SPI personality traits are representative of the domain of non-Big Five personality traits, then the major source of the variance in the SPI traits would be expected to correlate strongly with the sixth factor of personality, Honesty-Humility. We tested this hypothesis using self-report measures (N = 200) of the SPI traits, of the Big Five, and of the new six-dimensional ("HEXACO") structure. Results indicated that the first unrotated factor underlying the 10 SPI traits was heavily saturated with variance from Honesty-Humility (r = .65). Nevertheless, the 10 SPI traits contained substantial amounts of unique variance not accounted for by the HEXACO or the Big Five variables, highlighting the importance of the facet-level assessment of personality traits.     

Development and Validation of Research Scales for the Leadership Multi‐rater Assessment of Personality (LMAP)

This article presents large‐sample developmental and validation research for a set of research scales of an existing 360‐degree personality measure, the LMAP 360 (Leadership Multi‐rater Assessment of Personality). In Study 1 (N = 1,771), we identified 6 broad domains underlying LMAP item clusters: Neuroticism, Dominance, Enthusiasm, Openness, Agreeableness, and Conscientiousness. Scales measuring these broad domains and their constituent facets showed strong internal consistency, inter‐rater reliability, and self‐informant correlations. In Study 2 (N = 729 and N = 694), we examined LMAP research scales’ convergent and discriminant validity against three well‐validated personality inventories (Goldberg's adjectives, the Big Five Inventory, and the Big Five Aspects Scales) and one measure of cognitive ability (the International Cognitive Ability Resource). LMAP research scales correlated strongly with corresponding scales from other inventories and were distinct from cognitive ability.     

Broad versus narrow traits: Conscientiousness and honesty–humility as predictors of academic criteria

Recent research has suggested that the six‐dimensional personality model, and especially the dimension Honesty–Humility/Integrity, adds incremental validity to the prediction of important criteria. We expected both this dimension and the dimension Conscientiousness to explain incremental variance in two academic criteria, namely grade point average (GPA) and counterproductive academic behaviour (CAB). In addition, we expected the more specific, so‐called narrow traits of Conscientiousness and Honesty–Humility/Integrity to be stronger predictors of academic criteria than the broad traits. To test these expectations, two studies were conducted using the HEXACO Personality Inventory Revised (HEXACO‐PI‐R) and the Multicultural Personality Test—Big Six (MPT‐BS). The results confirmed our expectations and suggest that academic criteria may be predicted with greater accuracy by focusing on the narrow traits of Conscientiousness and Honesty–Humility/Integrity. Copyright © 2010 John Wiley & Sons, Ltd.     

What Is Engagement? Proactivity as the Missing Link in the HEXACO Model of Personality

We tested the hypothesis that proactivity represents the engagement vector in the HEXACO model of personality. Questionnaire data were obtained in five studies, three of which consisted (mostly) of students: Study 1 (N = 188, M_age = 20.0, 89.4% women), Study 3 (N = 315, M_age = 20.4, 80.6% women), and Study 4 (N = 309 self‐ratings, M_age = 20.0, 78.3% women; N = 307 other‐ratings, M_age = 24.5, 62.2% women). Participants in the other two studies came from an ISO‐certified representative community panel: Study 2 (N = 525, M_age = 51.2, 52.0% women) and Study 5 (N = 736, M_age = 42.2, 48.0% women). Proactive Personality and Proactivity were positively related to Extraversion, Conscientiousness, and Openness to Experience, but only weakly related or unrelated to Honesty‐Humility, Emotionality, and Agreeableness, supporting the alignment of Proactive Personality/Proactivity with the hypothesized HEXACO engagement vector. Additionally, Proactivity explained incremental variance in self‐rated job performance on top of the HEXACO facets that were most closely associated with Proactive Personality/Proactivity, that is, Social Boldness (an Extraversion facet), Diligence (a Conscientiousness facet), and Creativity (an Openness to Experience facet), but not in entrepreneurship and intrapreneurship. Proactivity is the missing engagement link in the HEXACO model of personality. The results are discussed in light of higher‐order factors (e.g., general factor of personality and Alpha and Beta) of personality and bandwidth‐fidelity controversies.     

No evidence for a General Factor of Personality in the HEXACO Personality Inventory

There have been an increasing number of articles that have speculated on the existence of a General Factor of Personality (GFP) similar to ‘g’ in intelligence research. In this study, I provide evidence that this general factor may be an artifact of the personality instrument used. Specifically, in two samples I show that depending on the type of analysis used there is either no evidence for a GFP in the HEXACO Personality Inventory or the GFP is found to be uncorrelated to GFPs based on Big Five or FFM instruments.     

Subscales of the Barratt Impulsiveness Scale differentially relate to the Big Five factors of personality

The place of impulsiveness in multidimensional personality frameworks is still unclear. In particular, no consensus has yet been reached with regard to the relation of impulsiveness to Neuroticism and Extraversion. We aim to contribute to a clearer understanding of these relationships by accounting for the multidimensional structure of impulsiveness. In three independent studies, we related the subscales of the Barratt Impulsiveness Scale (BIS) to the Big Five factors of personality. Study 1 investigated the associations between the BIS subscales and the Big Five factors as measured by the NEO Five‐Factor Inventory (NEO‐FFI) in a student sample (N = 113). Selective positive correlations emerged between motor impulsiveness and Extraversion and between attentional impulsiveness and Neuroticism. This pattern of results was replicated in Study 2 (N = 132) using a 10‐item short version of the Big Five Inventory. In Study 3, we analyzed BIS and NEO‐FFI data obtained from a sample of patients with pathological buying (N = 68). In these patients, the relationship between motor impulsiveness and Extraversion was significantly weakened when compared to the non‐clinical samples. At the same time, the relationship between attentional impulsiveness and Neuroticism was substantially stronger in the clinical sample. Our studies highlight the utility of the BIS subscales for clarifying the relationship between impulsiveness and the Big Five personality factors. We conclude that impulsiveness might occupy multiple places in multidimensional personality frameworks, which need to be specified to improve the interpretability of impulsiveness scales.     

Personality and prejudice: Extension to the HEXACO personality model

We modelled the associations between the HEXACO dimensions of personality, Social Dominance Orientation (SDO), Right‐Wing Authoritarianism (RWA) and prejudice towards dangerous, derogated and dissident groups (N = 454 undergraduates). Consistent with a Big‐Five model, low Openness to Experience predicted RWA and therefore dangerous and dissident group prejudice. As predicted, low Emotionality (and Openness) rather than Agreeableness predicted SDO and therefore derogated and dissident group prejudice. Comparison with meta‐analytic averages of Big‐Five data supported expected similarities and differences in the association of Big‐Five and HEXACO models of personality with ideology. Finally, Honesty‐Humility simultaneously predicted increases in RWA but decreases in SDO, and thus opposing effects on prejudice. These opposing effects have gone unidentified in research employing Big‐Five models of personality structure. Copyright © 2010 John Wiley & Sons, Ltd.     

Predicting integrity with the HEXACO personality model: Use of self‐ and observer reports

Recent research has suggested that a six‐dimensional model of personality called the HEXACO framework may have particular value in organizational settings because of its ability to predict integrity‐related outcomes. In this series of studies, the potential value of the HEXACO factor known as Honesty‐Humility was further examined. First, the empirical distinctness of this construct from the other major dimensions of personality was demonstrated in a high‐stakes personnel selection situation. Second, Honesty‐Humility was found to predict scores on an integrity test and a business ethical decision‐making task beyond the level of prediction that was possible using measures based on a traditional Big Five model of personality. This finding was also observed when Honesty‐Humility was assessed by familiar acquaintances of the target persons. The applicability of the HEXACO model within industrial and organizational psychology was then discussed.     

Individual Differences in Good Manners Rather Than Compassion Predict Fair Allocations of Wealth in the Dictator Game

One of the most common tools for studying pro‐sociality is the dictator game, in which allocations to one's partner are often described in terms of altruism. However, the motivations driving these allocations may represent either emotional concern for others (compassion), adherence to social norms regarding fairness (politeness), or both. In this article, we apply personality psychology to the study of behavior in the dictator game, in which we examine the discriminant validity of distinct pro‐social constructs from the Big Five and HEXACO models in relation to allocations of wealth. Across four studies (Study 1: N = 192; Study 2: N = 212; Study 3: N = 304; Study 4: N = 90) utilizing both hypothetical and incentivized designs, we found that the politeness—but not compassion—aspect of Big Five Agreeableness, as well as HEXACO Honesty‐Humility, uniquely predicted dictator allocations within their respective personality models. These findings contribute to a growing literature indicating that the standard dictator game measures “good manners” or adherence to norms concerning fairness, rather than pure emotional concern or compassionate motives, and have important implications for how this paradigm is used and interpreted in psychological research.     

Getting Along and/or Getting Ahead: Differential HEXACO Personality Correlates of Likeability and Popularity among Adolescents

Getting along (i.e. to be liked) and getting ahead (i.e. to be popular) are two fundamental psychological motives that have important consequences for adolescents' well-being. Especially antisocial behavioural tendencies, which are less well covered by the Big Five than by the HEXACO model, have been shown to differentially predict likeability and popularity. In this study, possible differential relations between personality and likeability and popularity were investigated using the HEXACO Simplified Personality Inventory and sociometric measures of likeability and popularity among 552 (12 to 14 years old) adolescents. Results showed that agreeableness was the most important likeability predictor, whereas extraversion (positive), openness to experience, honesty-humility, and agreeableness (all three negative) were the most important popularity predictors. Facet-level analyses revealed that selected HEXACO facets (greed avoidance, fearfulness, social boldness, gentleness, prudence, perfectionism, aesthetic appreciation, and altruism) most strongly—and in opposite directions—differentiated in the prediction of likeability and popularity. Furthermore, none of the expected interactions but several masking and cancellation effects were observed. The results, which are also discussed in light of interpersonal circumplex, resource control strategies, hierarchical differentiation, and socioanalytic frameworks, suggest that—among early adolescents—differential personality predictors may make it difficult to both get along and get ahead. © 2020 The Authors. European Journal of Personality published by John Wiley & Sons Ltd on behalf of European Association of Personality Psychology     

The HEXACO Personality Inventory: Validation and Psychometric Properties in the Serbian Language

The aim of this research is to validate the HEXACO model of personality in the Serbian language through psychometric validation of the 100–item version of the HEXACO–PI–R. The research was conducted on 2 independent samples, the first comprising 1,217 participants from a community sample (55.5% females; average age = 31.77 years), and the second 345 undergraduate students (65% females; average age = 21 years). Besides the HEXACO–PI–R, 2 questionnaires were applied for the purposes of convergent validation: the Big Five Plus Two (BF+2), measuring 7 lexical personality dimensions (applied in Sample 1), and the Big Five Inventory (BFI; applied in Sample 2). Factor structure of the HEXACO–PI–R is in line with model assumptions. Convergent validity is good, whereby Extraversion, Openness to Experience, and Conscientiousness are highly correlated to their BFI and BF+2 counterparts. Honesty–Humility is most closely related to Negative Valence (BF+2), Emotionality to BFI Neuroticism, and Agreeableness to BF+2 Aggressiveness and BFI Agreeableness. The results point to the satisfactory validity of the HEXACO model and its measure in the Serbian language.     

Dissociating Indifferent,Directional, and Extreme Responding in Personality Data: Applying the Three‐Process Model to Self‐ and Observer Reports

Research suggests that respondents vary in their tendency to use the response scale of typical (Likert‐style) questionnaires. We study the nature of the response process by applying a recently introduced item response theory modeling procedure, the three‐process model, to data of self‐ and observer reports of personality traits. The three‐process model captures indifferent, directional, and extreme responding. Substantively, we hypothesize that, and test whether, trait Honesty‐Humility is negatively linked to extreme responding. We applied the three‐process model to personality data of 577 dyads (self‐ and observer reports of the HEXACO Personality Inventory‐Revised; Lee & Ashton, 2006 ) of Dutch and German undergraduate respondents. First, we provide evidence that indifferent, directional, and extreme responding can be separated from each other in personality data through the use of the three‐process model. Second, we show that the various response processes show a pattern of correlations across traits and rating sources which is in line with the idea that indifferent and extreme responding are person‐specific tendencies, whereas directional responding is content‐specific. Third, we report findings supporting the hypothesis that Honesty‐Humility is negatively linked to extreme responding. In Likert‐based personality data, applying the three‐process model can unveil individual differences in the response process.     

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.     

Examining the Utility of General Models of Personality in the Study of Psychopathy: A Comparison of the HEXACO-PI-R and NEO PI-R

The Five-Factor model is one of the most popular models of general personality but recently a competing model, the HEXACO, has been put forth as an alternative. In the current study, we compare the two models by examining the interrelations between their primary measures, the Revised NEO Personality Inventory (NEO PI-R) and the Revised HEXACO Personality Inventory (HEXACO-PI-R), and their relations with psychopathy in a sample of undergraduates (N = 290). Results revealed good convergence between conceptually related personality traits. Both inventories accounted for substantial proportions of variance in psychopathy scores although the HEXACO-PI-R accounted for a larger proportion. The findings are discussed in relation to the HEXACO domain of Emotionality, which functions differently than NEO PI-R Neuroticism. The results suggest that both measures assess psychopathy-related traits, but the HEXACO-PI-R may offer a slight advantage.