Misconstruing methods and meaning in the General Factor of Personality

Research has suggested that a General Factor of Personality (GFP) might represent a real and meaningful higher‐order factor in the personality hierarchy. However, there are psychometric shortcomings in many of the studies used to support this argument, as well as convincing empirical evidence for alternative explanations of the GFP as methodological rather than meaningful. The current article re‐examines the research supporting a substantive GFP by considering and evaluating the evidence presented in a recent volume (Just, 2011). It is concluded that covariation among first‐order personality factors is more likely a statistical or methodological artefact than a theoretically meaningful higher‐order construct.     

Examination of Personality Characteristics in a Turkish Sample: Development of Basic Personality Traits Inventory

The aim of the present study was to test the cross-cultural validity of the five-factor nature of personality. For this aim, an indigenous, psychometrically strong instrument measuring the basic personality dimensions within Turkish culture and language was developed through three consecutive studies. The first study aimed to reveal the adjectives that have been most frequently used to define people in the Turkish culture. In the second study, factor analysis of these personality characteristics revealed big five personality factors, along with the sixth factor, which had been called as the Negative Valence factor. The adjectives that most strongly represented and differentiated each factor constituted 45-item “Basic Personality Traits Inventory”. Finally, in the third study, psychometric characteristics of the Basic Personality Traits Inventory were examined. Factor structure and psychometric properties of this instrument confirmed that five-factor nature of personality may not hold true in every culture.     

Changing the general factor of personality and the c-fos gene expression with methylphenidate and self-regulation therapy

A deepening in the biological nature of the general factor of personality (GFP) is suggested: the activation level of the stress system is here represented by the gene expression of c-fos. The results of a single case experimental design are reported. A model of four coupled differential equations that explains the human personality dynamics as a consequence of a single stimulant drug intake has been fitted to psychological and biological experimental data. The stimulant-drug conditioning and its adaptation to the considered mathematical model is also studied for both kinds of measures. The dynamics of the c-fos expression presents a similar pattern to the dynamics of the psychological measures of personality assessed by the GFP-FAS (Five-Adjective Scale of the General Factor of Personality) as a consequence of a single dose of stimulant drug (methylphenidate). The model predicts similar dynamic patterns for both psychological and biological measures. This study proves that describing mathematically the dynamics of the effects of a stimulant drug as well as the effects of a conditioning method on psychological or subjective variables and on gene expression is possible. It verifies the existence of biological mechanisms underlying the dynamics of the General Factor of Personality (GFP).     

The General Factor of Personality: The “Big One,” a self-evaluative trait,or a methodological gnat that won’t go away?

Though recent research indicates that the Big Five can be subsumed under a “General Factor of Personality” (GFP), considerable dissention remains about whether the GFP is a substantive trait (either a “mega”-trait or simply, positive self-evaluation), or a response artifact. To disentangle these potential explanations, we estimated GFP saturation based on scales within a single inventory (which may share response artifacts) versus between different inventories (wherein the GFP would be more substantive). Drawing on meta-analytic findings across 370 independent samples of 155,781 individuals, GFP saturation was reduced substantially when based on between inventory data (26%) compared to within inventory data (50%). These results indicate that the GFP functions as a response artifact that may be reduced by administering scales from different inventories. However, some GFP variance also appears to represent stable tendencies that span across inventories. Overall, the GFP appears to be partly a stable, self-evaluative trait and partly a set of response tendencies specific to a particular personality inventory. We discuss the implications of these results for academic and applied personality measurement.     

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.     

中国人幸福人格的结构与内涵

幸福人格是影响个体幸福感的重要人格特质。为了探索中国人幸福人格的结构和内涵,研究基于人格的词汇学假设,从以往研究者编制人格测验使用的初始词汇表中,筛选出225个与幸福感有关的人格词语。通过探索性因素分析和验证性因素分析,最终得到49个幸福人格词语。因素分析结果显示：中国人的幸福人格包含胆识、美德、乐观三个维度。以Campbell幸福感量表、主观幸福感量表和中国大五人格问卷简式版为效标的分析结果表明,幸福人格各维度得分可有效预测幸福感。     

The General Factor of Personality in selection and assessment samples

In two large samples (N₁ = 44,971, N₂ = 7793) we tested the General Factor of Personality (GFP) in the Big Five, measured during selection and assessment. A GFP could clearly be identified in the data, explaining approximately 50% of the Big Five variance. We found indications for socially desirable response tendencies in a subgroup that was tested for selection purposes. Yet, this tendency did not affect the personality factor structure or the GFP characteristics. Moreover, in the selection sample, the GFP was moderately related to the Overall Assessment Rating. The findings confirm the GFP in an applied setting and support the idea that the GFP does not merely reflect methodological artifacts but is substantive.     

Longitudinal Associations Between the Five-Factor Model of Personality and The Bi-Factor Model of Psychopathology: Continuity,Pathoplasty and Complication Effects in Adolescents

The study of the bifactor structure of psychopathology, which includes a general factor of psychopathology (or p factor) in addition to the internalizing and externalizing factors, has gained attention. However, its associations with the Five-Factor Model (FFM) of personality has been addressed in few studies, and none has examined different plausible etiological models (i.e., continuity, pathoplasty, complication) to explain its relationship, which is the aim of the present research. Additionally, the longitudinal association of the General Factor of Personality (GFP) and the p factor will be also explored. Personality and psychopathological symptoms of high school students were assessed at three time points (once a year) (n?=?655; M?=?13.79, SD?=?1.24; 49.8% girls). Confirmatory Factor Analysis (and measurement invariance across waves) were tested for the traits, the GFP and the bifactor model of psychopathology. While the bifactor model and the one-factor solution for each personality trait displayed good fit to the data and remained invariant over time, the structure of the GFP was adequate and invariant in two of the three waves. The resulting factors were included in cross-lagged panel models and showed that the FFM traits and the psychopathology factors influenced each other reciprocally. Most associations fell in line with the continuity model, but minor pathoplastic and complication effects were also reported. Similar associations were found between the GFP and the p factor. These results suggest that interventions in riskier personality profiles might prevent the development of general and more specific psychopathology spectra.

     

Evidence for the role of the General Factor of Personality (GFP) in enculturation: The GFP and self-construal in Japanese and American samples

Data from Midlife in the United States (MIDUS) studies, one with American participants and one with Japanese participants, were used to test the hypothesis that the General Factor of Personality (GFP) is positively associated with enculturation. To this end, the relationships between the GFP and independent self-construal and interdependent self-construal were examined. Consistent with the hypothesis, the results showed that an independent self-construal was more closely associated with the GFP in the American sample.     

Predicting Sales Performance Criteria With Personality Measures: The Use of the General Factor of Personality,the Big Five and Narrow Traits

The present study investigated the predictive validities of different hierarchical levels of personality for sales performance. The General Factor of Personality was expected to be most effective at predicting general sales performance, whereas the Big Five factors and its underlying narrow traits were expected to be most effective at predicting the specific sales performance criteria to which they are conceptually aligned. Six different sales performance measures were used in an international study involving 405 sales employees. The results suggest that General Factor of Personality is a valid predictor of general job performance but that some of the aligned narrow personality traits predict specific sales performance above and beyond the Big Five factors. The narrow trait Social Boldness has a negative relation with rated sales performance and sales results.     

Adjective checklist to assess the big five personality factors in the Argentine population

The aim of this work was to develop an adjective checklist to assess the Big Five personality factors in the Argentine population. The new instrument was administered to pilot (n= 112), validation (n= 372), and replication (n= 309) samples. The final version of the checklist included 67 adjectives encompassing its 5 dimensions. Factor analysis results were consistent with the Five-factor model. Internal consistency of scales was very good and convergent correlations with the Big Five Inventory (BFI; John, Donahue, & Kentle, 1991) were substantial. Face validity, as evaluated by 2 independent raters, was good. Preliminary evidence of validity for the checklist is presented. Finally, the Adjective Checklist for Personality Assessment and BFI are compared, taking into consideration their psychometric properties in our cultural context. Study limitations and future research are discussed.     

A General Factor of Personality in the Millon Clinical Multiaxial Inventory-III, the Dimensional Assessment of Personality Pathology, and the Personality Assessment Inventory

A General Factor of Personality (GFP) occupies the apex of the hierarchy in three prominent personality disorder inventories. On the Millon Clinical Multiaxial Inventory-III, a GFP accounted for 41% of the variance in two second-order factors, 31% of the variance in five first-order factors, and 26% of the variance in all 24 scales. On the Dimensional Assessment of Personality Pathology, a GFP accounted for 61% of the variance in six first-order factors and 36% of the variance in all 18 scales. In a cross-validation study of the Personality Assessment Inventory, a GFP accounted for 65% of the variance in two second-order factors, 47% of the variance in five first-order factors, and 27% of the variance in all 18 scales.     

The General Factor of Personality: A critical test

The present study provides evidence supporting the presence of a General Factor of Personality (GFP), which has been proposed to represent the apex of the hierarchy of personality traits. Furthermore, the construct validity of this general factor is assessed to address recent criticisms suggesting that the GFP may merely be a statistical artefact rather than a genuine higher-order personality dimension. In this study, two samples of monozygotic (MZ) and same-sex dizygotic (DZ) twins completed the NEO Personality Inventory-Revised (NEO-PI-IR), assessing individual differences in the Big Five traits of personality, and the Dimensional Assessment of Personality Problems-Differential Questionnaire (DAPP-DQ) measuring variance in abnormal personality traits. First unrotated factors were extracted from each of the two measures separately within each sample. Correlations between these factors were significant and high in both samples (.78 and .77), indicating that the factors represent similar constructs. The manner in which these findings help to validate the GFP is discussed.     

Evidence of the Psychometric Integrity of the Creative Personality Scale using Item Response Theory Models

Gough’s Creative Personality Scale (CPS) has been very widely used to assess creative personality characteristics, and many researchers have argued that it is associated with strong reliability and validity evidence. However, findings vary considerably across the samples used in each study, suggesting that an analysis using the item response theory framework would provide more useful evidence of the instrument’s psychometric integrity. Results suggest that the CPS is multidimensional, and some items have low discrimination indices. Additionally, significant correlations between participants’ trait estimates (i.e., estimated creative personality) and their engagement in a range of creative activities indicate that the CPS is associated with convincing evidence of criterion-related validity.     

General Factors of Personality in Six Datasets and a Criterion‐Related Validity Study at the Netherlands Armed Forces

Several papers showed that a general factor occupies the top of the hierarchical structure of personality, the so‐called General Factor of Personality (GFP). The first question is whether the GFP behaves similar to the general factor of mental ability (g), in that GFP scores from different personality questionnaires correlate highly. The second question is whether the GFP is related to real‐life outcomes. In six large datasets (total N=21,754) collected in the Netherlands armed forces, the GFPs extracted from six personality questionnaires generally showed high degrees of correlation suggesting they measure the same construct. Moreover, GFP was related to drop‐out from military training. This evidence strengthens the view that the GFP is a substantive construct with practical relevance.     

The General Factor of Personality: A reply to Muncer

In previous studies we have shown that a General Factor of Personality (GFP) occupies the apex of the hierarchy of personality as well as the apex of the personality disorders in the same way that g, the general factor of mental ability, occupies the apex in the organization of cognitive abilities (Rushton & Irwing, 2011). In a critique, Muncer (2011) re-analyzed one of our data sets and concluded there was no evidence for a GFP. He also argued against the evolutionary theory we had proposed for the origin of the GFP. In this rejoinder I rebut Muncer’s conclusion and describe how directional selection can explain the GFP.     

Trait emotional intelligence: psychometric investigation with reference to established trait taxonomies

This paper sets out the theoretical foundation of emotional intelligence (EI) as a constellation of traits and self‐perceived abilities. The discriminant validity of trait EI is explored in two studies. In study 1 (N = 227), the psychometric properties of the BarOn Emotional Quotient inventory were scrutinized through confirmatory factor analysis and the measure was found to be unifactorial. When the EQ‐i was examined concurrently with the Eysenck Personality Profiler, a clear trait EI factor emerged in Eysenckian factor space. In study 2 (N = 166), a modified version of the EQ‐i was examined concurrently with the NEO PI‐R and a truncated trait EI factor was isolated within the Five‐Factor Model. Results are discussed with explicit reference to established personality models and it is concluded that trait EI can be conceptualized as a distinct composite construct at the primary level of hierarchical trait structures. Copyright © 2001 John Wiley & Sons, Ltd.     

Adjective Checklist to Assess the Big Five Personality Factors in the Argentine Population

The aim of this work was to develop an adjective checklist to assess the Big Five personality factors in the Argentine population. The new instrument was administered to pilot (n= 112), validation (n= 372), and replication (n= 309) samples. The final version of the checklist included 67 adjectives encompassing its 5 dimensions. Factor analysis results were consistent with the Five-factor model. Internal consistency of scales was very good and convergent correlations with the Big Five Inventory (BFI; John, Donahue, & Kentle, 1991) were substantial. Face validity, as evaluated by 2 independent raters, was good. Preliminary evidence of validity for the checklist is presented. Finally, the Adjective Checklist for Personality Assessment and BFI are compared, taking into consideration their psychometric properties in our cultural context. Study limitations and future research are discussed.