European Journal of Personality

A widely held belief among laypeople and psychologists suggests that self-esteem and relational aggression (i.e., perpetration and victimization) are associated over time. The present study examines the bidirectional associations between self-esteem and relational aggression across 6 years, using two types of longitudinal models (latent cross-lagged panel models and latent random intercepts cross-lagged panel models) to separate between- and within-person effects. Six hundred and seventy-four Mexican-origin youth reported their global and domain-specific self-esteem and relational aggression (perpetration and victimization) in the fifth, seventh, ninth, and eleventh grades. Our findings suggest that: (a) being a perpetrator is prospectively associated with later lower opposite-sex relationships self-esteem at the between-person level, (b) lower self-esteem in the domain of honesty-trustworthiness is prospectively associated with becoming a perpetrator and a victim at the within- and between-person level, (c) lower global self-esteem is prospectively associated with higher victimization at the between-person level, and (d) being victimized is not prospectively associated with later global or domain-specific self-esteem, at neither the within- nor the between-person level. The present study provides little evidence for the widely held belief about the bidirectional associations between self-esteem and relational aggression across time but demonstrates the complexity of these associations on the between- and within-person level.

Recent intervention research has shown that personality traits can be modified through psychological interventions. However, it is unclear whether reported effects represent changes in the trait domain or only some facets or items. Using data (N = 552) from a recent intervention trial, the present study examined the effects of a digital-coaching intervention on self- and observer-reported personality facets and items. We focused on participants who wanted to decrease in Negative Emotionality, increase in Conscientiousness or increase in Extraversion. We used measurement invariance testing to examine which level of the trait domain hierarchy changed during the intervention. For the self-reports, we found some heterogeneity in the effects on all three trait domains, but most notably Extraversion and Conscientiousness. Specifically, participants reported to increase strongly on sociability (Extraversion), and moderately on productiveness and organization (Conscientiousness), but not on the other facets of these trait domains. Observers generally reported small but non-significant changes, with no scalar invariance violations except for Extraversion. Overall, this suggests considerable heterogeneity in intervention-related personality change that can be overlooked if only focusing on the trait domain level. We discuss the relevance of measurement invariance testing and measurement approaches for personality development and intervention research.

Interpersonal functioning involves an interplay of subjective perceptions and overt behavior. This study examines alignment between self and informant perceptions of momentary behavior to enrich the nomological networks for the domains of dominance and affiliation. We studied a sample of romantic couples (N = 210 individuals) who rated their own and their partner’s interpersonal behavior during a 21-day ambulatory assessment (AA) protocol. We used multi-level structural equation modeling to estimate self-informant agreement on averages and variability of dominance and affiliation (between-person level) and on situational shifts in behavior (within-person level). We also examined convergence between self- and informant reported behavior measured by AA with cross-sectional self-report trait dominance, affiliation, and interpersonal problems. Results showed no self-informant agreement on dominance measured by AA, but moderate to strong agreement on affiliation at the between- and within-person levels. Self- and informant reported average affiliation measured by AA correlated with self-reports of trait affiliation, but only AA self-reports correlated with affiliation problems. Both self- and informant report dominance variability, and informant report affiliation variability, correlated with self-report interpersonal distress. Evidence for (mis)alignment in how dominance and affiliation are perceived by self and others have important implications for the role of these behaviors in everyday interpersonal functioning.

People differ in the way they live their daily lives. For some people, daily life is characterized by multiple and diverse experiences, while others have more stability and routine in their lives. However, little is known about how variety in daily life relates to the expression of personality states. The present study examined within-person associations between variety in social partners, places, and activities with state expression. Data came from an ambulatory assessment study (N = 962, M_age = 25.49) with four assessments per day over a period of six consecutive days. The results of the multilevel modeling analyses suggest that variety in daily life is associated with some, but not all, state expressions. For instance, on days when participants experienced a greater variety in activities, they reported being less neurotic and conscientious, but also more agreeable. In addition, the links between all social partners, places, and activities with the expression of the state were examined simultaneously to obtain more detailed information on the multifaceted nature of situation-state expression links. We conclude that variety in daily life has both theoretical and empirical relevance for the expression of personality states.

Self-control is the ability to (1) initiate, and (2) persist in boring, difficult or disliked activity, and to (3) inhibit impulses to act. We explored the self-regulatory strategies that people use for these three types of self-control conflicts and their subjective efficacy as a function of conflict type. In addition, we hypothesized that people who more frequently create strategy-situation fit by tying strategies to the conflict types they are effective for, are more successful at self-control. A pilot study identified 22 different self-regulatory strategies that could be used for more than one type of self-control conflict. We then used a large data set from two pooled experience sampling datasets (n = 14,067 reported self-control conflicts) to quantify these strategies’ popularity and subjective efficacy in daily life. Eight strategies were positively and three negatively associated with subjective self-regulatory success but subjective efficacy often depended on type of conflict: Some strategies were effective and some maladaptive only for some types of self-control conflicts. Individuals who created strategy-situation fit for some strategies also reported greater self-regulatory success, as hypothesized. We discuss regulatory flexibility as a crucial component of good self-control.

Personality traits can change throughout the entire life span, but people differ in their personality trait changes. To better understand individual differences in personality changes, we examined personal (personality functioning), environmental (environmental changes), and event-related moderators (e.g., perceived event characteristics) of personality trait changes. Therefore, we used a sample of 1069 participants who experienced a negative life event in the last 5 weeks and assessed their personality traits at five measurement occasions over 6 months. Employing preregistered multilevel lasso estimation, we did not find any significant effects. While exploratory analyses generally confirmed this conclusion, they also identified some effects that might being worth to be considered in future research (e.g., perceived impact and perceived social status changes were associated with changes in agreeableness after experiencing a relationship breakup). In total, our moderators explained less than 2% of variance in personality traits. Nonetheless, our study has several important implications for future research on individual differences in personality change. For example, future research should consider personal, environmental, and event-related moderators, use different analytical methods, and rely on highly powered samples to detect very small effects.

Individuals differ in the tendency to derive pleasure out of motive-specific incentives, such as being socially included or attaining power. Multiple theoretical approaches have proposed that such motive-specific positive affective contingencies (PACs) are central building blocks of motive dispositions and personality more broadly. In the current research, we put this claim to test and investigated individual differences with regard to motive-specific PACs in the affiliation and power domains. We measured PACs via spontaneous emotional reactions to motive-specific cues, as assessed by affect ratings and electromyographic (EMG) recordings of smile responses. Both of these PAC operationalizations were highly internally consistent and moderately to highly stable across time. Furthermore, motive-specific PACs were linked in a manner consistent with theory to measures of motive dispositions and to personality traits with motivational underpinnings (i.e., extraversion, agreeableness, and narcissism). Finally, in the affiliation domain, motive-specific PACs were linked to objectively assessed, key motivational outcomes (i.e., attentional orientation, behavior in daily life, and in the laboratory). Taken together, the findings underscore the relevance of affective contingencies for the understanding of personality and motivated behavior.

Positive affect is often considered the “hallmark of well-being,” associated with better health, longevity, and success. Self-determination theory (SDT) proposes that satisfying three basic psychological needs for autonomy, competence and relatedness (BNS) fosters optimal functioning, thriving, and positive affect. Meanwhile, broaden-and-build theory suggests that positive emotions predict future psychosocial resources such as need satisfaction. Previous research on the BNS–positive affect link has not sufficiently established to what extent changes in BNS precede changes in positive affect or vice versa. We tested this in two 3-wave longitudinal studies, conducted over 2 years in the UK (Study 1: N = 958) and over 2 months in Latin America (Study 2: N = 1200). Bivariate latent trait-state-occasion models revealed that within-person fluctuations in BNS significantly predicted subsequent fluctuations in positive affect in both studies, but fluctuations in positive affect predicted subsequent fluctuations in BNS only in Study 2. These findings consistently support SDT predictions, whereas they only partially support broaden-and-build theory predictions, helping to clarify the likely causal relations between BNS and positive affect.

We investigated how the dispositional sensitivity to becoming the victim of injustice (victim sensitivity) is linked to the momentary processing of injustice and how such processes predict dispositional change. In two samples (N = 149, N = 513), we combined four dispositional assessments across students’ first year at university, with intensive assessments given on a weekly (Study 1) or daily (Study 2) basis at the beginning of the first semester. We assessed how frequently injustice from a victim perspective was perceived and ruminated about (Studies 1 and 2), and how intensely anger was experienced in reaction (Study 2). These indicators of momentary processes were tested as correlates of baseline victim sensitivity and as predictors of dispositional change. The intensity of anger reactions predicted dispositional change in victim sensitivity after 4 months, but not earlier or later, and did not generalize to predict change in neuroticism. These findings are in line with recent theorizing about personality development, emphasizing the relevance of patterns of momentary processes for understanding dispositional change.

Assessing evolution of cognitive structures across historical periods has remained challenging in the absence of direct access to humans from the past. Overcoming some of these challenges, we examined shifts in the implicit cognitive structures in the Epic of Gilgamesh, which is one of the earliest surviving pieces of literature, circulating in various versions over a period of approx. 2000 years in ancient Mesopotamia. Using a canonical English translation, we applied natural language processing (NLP) and human coding to extract low-dimensional representations of the implicit personality structure in three different historical epochs. We found systematic shifts over time with increasing complexity and increasing resemblance of contemporary personality models in later periods. We discuss how lexical analyses of ancient texts using trait co-occurrence analyses can provide novel insights on the evolution of human behaviour of relevance for contemporary social and behavioural science and the study of ancient societies.

Personality inventories are predominantly curated using factor analytic approaches. Indicators capturing common and thus redundant variance are preferentially selected, whereas indicators capturing a large proportion of unique variance outside the broad trait domains are omitted from further research. Even recent research dealing with lower-level personality traits such as facets or nuances has invariably relied on inventories founded on this factor analytic approach. However, items can also be selected to ensure low instead of high communality amongst them. The expected predictive power of such item sets is higher compared to those compiled to capitalize on the indicators’ redundancy. To investigate this, we applied Ant Colony Optimization (ACO) to select personality-descriptive adjectives with minimal inter-item correlations. When used to predict the frequency of everyday life behaviors, this ‘crude-grit’ set outperformed a traditional big-five item set and sets of randomly selected adjectives. The size of the predictive advantage of the crude-grit set was generally higher for those behaviors that could also be predicted better by the big-five item set. This study provides a proof-of-concept for an alternative procedure for compiling personality scales, and serves as a starting point for future studies using broader item sets.

The concept of differentiation describes increasing or decreasing similarities between inter-individual differences on psychological constructs, reflecting processes of specialization or adaptation. In this study, we studied age-differentiation in personality traits in (1) the trait domain and facet loadings, (2) the correlations between trait domains, and (3) trait domain, facet, and item (residual) variances. We used three large cross-sectional samples (Ns > 3000) covering 16–90 years of age with broad measures of the Big Five, Five-Factor, and HEXACO models. We examined age effects on the model parameters using local structural equation modeling. We found a high stability of the trait domain loadings, suggesting relatively stable trait domain compositions across age. Extraversion-Openness correlations increased across age for all three measures, whereas an increase in the Extraversion-Agreeableness and decrease in the absolute Neuroticism-Extraversion correlations only replicated across the five-dimensional models. Inter-individual differences in personality were similar across age in the trait domains and facets but differed substantially for item residuals. In summary, the structure and individual differences in broad personality traits is relatively stable across the adult lifespan, with most age-differences only affecting the item level.

This study examines the hypothesis that temperamental (dis)similarity is associated with twin relationship quality. In a longitudinal study that followed 322 monozygotic twins (who share close to 100% of their genes) and 1199 dizygotic twins (who on average, share 50% of their segregating genes) throughout childhood, mothers (N = 1547) and fathers (N = 536) reported on their twins’ relationships on at least one of four measurement points when the twins were between 3 and 8–9 years of age. Mothers also reported on the twins’ temperament. Negative associations were found between reports by both parents on the twins’ closeness and their temperament difference throughout childhood, while positive associations were found between twins’ conflict and their temperament difference in late childhood. Latent growth modeling indicated that the association between temperament differences and the twins’ mother-reported closeness was evident beyond the effect of zygosity. A different pattern was found for twin conflict: the more the twins differed in their temperament (specifically negative emotionality) with age, the more the conflict between them increased. Our findings support the hypothesis that personality similarities can contribute to positive relationships from early childhood, and vice versa, beyond the effect of genetic similarity.

Researchers and practitioners have long been interested in the relations of basic personality domains with health. Whereas previous meta-analyses have focused on the Big Five traits, we provide the first meta-analysis of the relations between the HEXACO domains, as assessed by HEXACO Personality Inventories, and various health outcomes (k = 276, N = 92,319). In general, relations of the HEXACO domains were strongest with mental health, followed by health behavior, whereas relations with physical health outcomes were weak and largely non-significant. All HEXACO domains were significantly linked to mental health and health behavior outcomes. Extraversion exhibited the strongest correlation with mental health ( ρ ¯ = .48), whereas Honesty-Humility ( ρ ¯ = .31), Agreeableness versus Anger ( ρ ¯ = .25), and Conscientiousness ( ρ ¯ = .31) were most predictive of health behavior. Physical health was only significantly associated with Emotionality ( ρ ¯ = −.14) and Conscientiousness ( ρ ¯ = .10). Honesty-Humility explained incremental variance over the Big Five in several health behavior outcomes, whereas it had little incremental validity for mental and physical health outcomes. Finally, comparing the variance that the HEXACO and the Big Five domains explained in specific health outcomes demonstrated that each personality model occasionally exhibited superior criterion-related validity. Hence, the choice of the more useful personality model could be outcome-dependent.

Mindfulness is defined inconsistently, and its various measures resemble established personality self-report scales. Therefore, jingle and jangle fallacies are likely to undermine the construct’s utility. To address these issues, we conducted two studies to test three hurdles of validity: 1) a sound definition and measurement model, 2) empirical distinctiveness, and 3) incremental criterion validity. We established an overarching and inclusive mindfulness definition covering twelve aspects. Based on this definition, we used an item sampling algorithm to select items from eight mindfulness scales. We established an eclectic bi-factor and a single-factor model, both fitting the data well. Bivariate latent variable correlations between a single mindfulness factor and big-five/six personality factors reached up to .68. Although 50% of mindfulness' variance was unaccounted for by the personality factors, it provided no meaningful incremental criterion validity over personality factors. Our results indicate that mindfulness has little or no incremental utility above established personality factors.