Big Five personality traits predict small but robust differences in civic engagement.

OBJECTIVE: This preregistered study provides robust estimates of the links between Big Five personality traits and civic engagement across different samples and life stages. METHODS: We recruited two samples from the United States and United Kingdom (total N = 1593) and measured Big Five domains, Big Five aspects, and six civic engagement indicators: volunteerism, charitable giving, donating blood, posthumous organ donation, political voting, and vaccination. We compared the links between these measures across samples and tested moderation across life stages and several sociodemographic variables. We explored whether these links replicate between self- and peer-reports. RESULTS: We found small but robust effects. Agreeable, extraverted, and open/intellectual participants reported more civic engagement, especially volunteerism and charitable giving. Neurotic and conscientious participants mainly reported less civic engagement, especially blood and organ donations. One of the two Big Five aspects often drove these links, such as Compassion in the link between Agreeableness and volunteerism. We found some differences between younger and middle-aged adults. CONCLUSIONS: Big Five personality traits predict civic engagement modestly but consistently, with adequate study power being critical to detecting these links. Lower-order traits, such as Big Five aspects, clarify the relationships between traits and engagement. Life stages and sociodemographic variables have limited effects.

The Veg∗n Eating Motives Inventory Plus (VEMI+): A measure of health, environment, animal rights, disgust, social, pandemic and zoonotic diseases, and farm workers' rights motives.

Health, environmental concern, and animal rights are established motives for reduced meat consumption that can be measured by the Vegetarian Eating Motives Inventory (VEMI). This preregistered study aimed to expand the VEMI to include four less-studied motives: disgust, social, concern about zoonotic diseases and pandemics, and concern for workers' rights. We had three objectives: to combine the seven motives into a comprehensive model, to test if the VEMI+ scales function equivalently across omnivore and vegan groups, and to validate and differentiate these motives against external measures and meat reduction appeals. In samples of 731 omnivores and 731 vegans (total N = 1,462), we found support for the measurement invariance of a seven-factor structure across groups and created a scale with reliable measures for each dimension (ω total between 0.82 and 0.97). Vegans scored higher overall, with substantially higher scores on environmental concern, animal rights, disgust, and zoonotic disease concerns, while omnivores had slightly higher scores on health, social, and workers' rights scales. Scale scores had expected correlations with criterion measures and differentially predicted support for motive-tailored appeals. This study enhances our understanding of dietary motivations and provides a valuable tool for future research.

The impact of childhood lead exposure on adult personality: Evidence from the United States, Europe, and a large-scale natural experiment.

Childhood lead exposure has devastating lifelong consequences, as even low-level exposure stunts intelligence and leads to delinquent behavior. However, these consequences may be more extensive than previously thought because childhood lead exposure may adversely affect normal-range personality traits. Personality influences nearly every aspect of human functioning, from well-being to career earnings to longevity, so effects of lead exposure on personality would have far-reaching societal consequences. In a preregistered investigation, we tested this hypothesis by linking historic atmospheric lead data from 269 US counties and 37 European nations to personality questionnaire data from over 1.5 million people who grew up in these areas. Adjusting for age and socioeconomic status, US adults who grew up in counties with higher atmospheric lead levels had less adaptive personality profiles: they were less agreeable and conscientious and, among younger participants, more neurotic. Next, we utilized a natural experiment, the removal of leaded gasoline because of the 1970 Clean Air Act, to test whether lead exposure caused these personality differences. Participants born after atmospheric lead levels began to decline in their county had more mature, psychologically healthy adult personalities (higher agreeableness and conscientiousness and lower neuroticism), but these findings were not discriminable from pure cohort effects. Finally, we replicated associations in Europeans. European participants who spent their childhood in areas with more atmospheric lead were less agreeable and more neurotic in adulthood. Our findings suggest that further reduction of lead exposure is a critical public health issue.

Personality Functioning, Problems in Living, and Personality Traits.

The publication of the Alternative Model of Personality Disorder (AMPD) was a signpost achievement in the personality assessment. However, research on the AMPD has generally not led to either a deeper understanding of personality disorder or personality assessment or new ideas about how to provide better care for people with personality disorder diagnoses. A significant portion of research has focused on narrow issues and appears to be driven in part by ideological differences between scholars who prefer Criterion A (personality functioning) or Criterion B (maladaptive traits). I trace these issues to ambiguity about the concept of personality functioning as defined in the AMPD and its conceptual distinction from personality traits and problems in living. In this paper, I reground these concepts in coherent and distinct definitions, elaborate upon the implications of their differences, and show how these differences can help clarify and reorient AMPD research to focus on generating clinically useful models for personality pathology and personality assessment.

Clinical cut scores for the Persian version of the personality inventory for DSM-5.

BACKGROUND: The cut points of psychological tools to diagnose clinical conditions are not universal and depend on the region and prevalence of the disorder. Thus, we aimed to identify the cutoff points of the Persian original version of the personality inventory for DSM-5 (PID-5; 220 items) that would optimally distinguish nonclinical from clinical groups. METHODS: Both nonclinical (N = 634, 73% female, 34.0 ± 10.8 years) and clinical (N = 454, 29% female, 29.5 ± 7.4 years) samples from the West of Iran participated in the study. Data were analyzed using receiver operating characteristic (ROC) and Youden's index was used to determine the cutoff scores across the PID-5 domains and facets. The means and standard deviations of both the clinical male and female were compared with the nonclinical group using Cohen's d and independent t-tests. RESULTS: All the PID-5 algorithms and facets significantly distinguished clinical from nonclinical samples with some unique findings for male and female samples. The mean score of all the PID-5 algorithms and facets in the clinical male and female samples were respectively 1.0-2.0 SD and 0.5-1.0 SD above the mean for the nonclinical counterparts. A score higher than 1.5 on ranging from 0 to 3 in each domain or facet indicated clinical status. CONCLUSION: Raw cutting scores throughout the PID-5 algorithms can be well used to diagnose any pathology of personality and the severity of the disorder in clinical patients. The cut scores provide a useful tool for the clinical use of the original version of PID-5 in Iran.

Self-Esteem and Income Over Time.

There is robust evidence that people with higher incomes tend to have higher self-esteem, but little is known about how changes in income and self-esteem are related within individuals. Some theories predict that increased earnings lead to higher self-esteem, others that increased self-esteem leads to higher earnings, and still others that there should be no within-person associations between these variables. We tested these theories in 4-year longitudinal data from more than 4,000 adult participants from a Dutch representative sample. Results indicated significant between-person associations between income and self-esteem, consistent with prior research. Within-person effects suggested that increases in self-esteem are a function of previous increases in income more than the other way around. These links held when analyses controlled for employment status, and they generalized across gender, age, and educational background. Overall, the findings provide evidence for theories that consider self-esteem as both a source and a consequence of personal earnings.

Threatening Beliefs About Self and Others Moderate the Association Between Psychoticism and Psychological Distress.

ABSTRACT: Psychoticism is a multidimensional personality construct involving odd or eccentric behavior, quasi-psychotic experiences, mistrust, interpersonal detachment, and liability for schizophrenia-spectrum disorders, as well as significant distress. Recent advances suggest it can be understood as a dimension that is continuously distributed in the population, leading to questions about factors that contribute to distress and dysfunction among people with a schizotypal liability. We investigated in a large nonclinical sample of young adults whether associations between psychoticism and psychological distress would increase in the presence of threatening beliefs. In our study ( N = 2127), we found that the association between psychoticism and psychological distress is moderated by threatening beliefs including self-criticism, fear of compassion, and socially prescribed perfectionism. These results suggest that distress increases among people with schizotypal traits in the context of negative beliefs about self and others. We discuss implications for clinical practice and directions for further research.

The psychology of eating animals and veg*nism.

Vegetarian and vegan (Veg*n) diets are increasingly popular in Western societies and an increasingly common topic of psychological research. Animal-free diets hold considerable potential for helping curb the climate crisis and improving interspecies justice. This special issue presents recent contributions from research on the psychology of meat eating and veg*nism. To situate these articles in a broader context, we first establish the importance of studying veg*nism. We then review papers in this special issue, organized into themes of motivations and characteristics of veg*ns, attitudes towards veg*ns, attitudes toward meat and alternative proteins, intentions to eat meat or plant-based foods, consumption of meat or plant-based foods, and meat reduction interventions. We conclude with future directions for this blossoming field of study.

Synthesizing contemporary integrative interpersonal theory and the narrative identity approach to examine personality dynamics and regulatory processes.

OBJECTIVE: The goal of this paper is to promote the integration of two approaches to personality and assessment: Contemporary Integrative Interpersonal Theory (CIIT) and the Narrative Identity Approach (NI). METHODS: We review CIIT and NI, describe their similarities and differences, and articulate opportunities to integrate the approaches to more fully account for personality dynamics and self-regulation. RESULTS: We identify several areas within which concepts from CIIT and NI could be synthesized and offer four concrete suggestions for integrating the assessment methods within each approach: (1) using narratives to explicate interpersonal perception, (2) using stories to clarify interpersonal context, (3), using the Interpersonal Situation as a framework for unpacking narrative elements, and (4) coding interpersonal sequences in narrative data. CONCLUSIONS: CIIT and NI have potential to augment one another both theoretically and methodologically in ways that would be fruitful for conceptualizing and studying personality dynamics and self-regulation.

Personality, self-knowledge, and meat reduction intentions.

OBJECTIVE: Meat consumption has a host of serious negative consequences for nonhuman animals, underprivileged humans, and the natural environment. Several interventions have been developed to encourage meat reduction but to relatively limited effect. There is also a range of established predictors of meat consumption, but much less is known about the factors that predict intentions to reduce meat consumption. The goal of this study was to determine the roles of personality and self-knowledge in meat reduction intentions. METHOD: In this set of three preregistered studies, we tested brief interventions to encourage meat reduction intentions and examined personality predictors of intentions to reduce meat consumption. RESULTS: We found no evidence that brief interventions with or without a self-knowledge component had a meaningful effect on changing meat reduction intentions. However, we found robust evidence for relatively small associations between intending to eat less meat and high Openness to Experience, high Emotionality, and perceiving meat reduction as moral behaviors. CONCLUSION: Individual differences may be a more influential predictor of meat reduction intentions than brief interventions. Implications for promoting meat reduction are discussed.

Meta-analysis of personality trait differences between omnivores, vegetarians, and vegans.

Vegetarian and vegan diets have been increasing in the Western world. Recent research has focused on personality trait differences between dietary groups, in part because personality traits are broad characteristics that can integrate findings about different factors that motivate vegetarian or vegan diets. Previous research on personality predictors of vegetarian and vegan (veg*n) diet, however, has yielded inconsistent results. The goal of this study was to integrate the existing results of Big Five personality differences between veg*ns and omnivores as well as between vegetarians and vegans. To this end, we meta-analyzed data from 15 studies and N = 69,576 individuals from several countries. Results indicated that veg*ns were significantly higher in Openness (d = 0.40) and Agreeableness (d = 0.17) than omnivores, while vegans were significantly higher in Openness (d = 0.14) than vegetarians. This work isolates Openness and Agreeableness as important trait predictors of plant-based diets and sets the stage for future work on the factors that motivate vegetarian or vegan diet. Personality traits can provide an integrative framework for conceptualizing dietary preferences, be used to make predictions about the sources, course and correlates of dietary choices, and potentially be useful for advocates and policymakers seeking to tailor meat-reduction interventions.

Psychological change before and after religious conversion and deconversion.

OBJECTIVE: Theory and anecdotal evidence suggest that people undergo psychological changes before and after religious conversion and deconversion. Yet, existing research provided inconclusive evidence. Here, we examined psychological change before, during, and after institutional conversion and deconversion in a large-scale longitudinal study. METHOD: We used 11-wave longitudinal data from a nationally representative sample of Dutch adults (N ~ 20,000) to assess changes in religious beliefs and practices, personality traits, and well-being before, during, and after conversion to and deconversion from Christianity. RESULTS: Converts (N = 181) increased in service attendance and prayer, but not in their belief in God, as they approached conversion. Deconverts (N = 450) declined in religious beliefs and practices before, during, and after deconversion. In terms of personality, converts displayed small, unexpected declines in emotional stability, extraversion, and agreeableness at time of conversion. Deconverts declined in agreeableness, conscientiousness, and openness at time of deconversion. Neither group showed changes in their well-being. CONCLUSION: The present findings suggest that psychological changes during religious conversion and deconversion are generally small and mostly manifest as changes in people's religious beliefs and practices. Findings are discussed in the context of person-religion fit, meaning-making, and sociocultural motive perspectives on religious change.

Nature and Impact of Reference Group Effects in Personality Assessment Data.

People have a tendency to engage in social comparisons when evaluating and reporting on personality. This tendency and variation in who people compare their personality to is known as the reference group effect and has been largely discussed in cross-cultural research. However, reference group effects have implications beyond cross-cultural research and should be considered when collecting and interpreting personality data. In the present study, we examined the nature and impact of reference group comparisons on the Big Five personality traits in a sample of N = 1194 participants. Specifically, we examined what reference groups participants most believed they compared their personality to, and which reference group was actually the most impactful on trait scores. We found that most people believed they compared their personality to people in general. However, the most influential reference group was people the same age as the participants. Moreover, we found that people mostly engaged in between- as opposed to within-person comparisons when evaluating their own personality. Overall, our findings highlight that people have relatively little insight into the comparisons they engage in when make judgments on personality. Discussion focuses on theoretical and practical implications of our findings in light of personality assessment data.

Therapists' perception of the working alliance, real relationship and therapeutic presence in in-person therapy versus tele-therapy.

Although teletherapy is increasingly common, very little is known about its impact on therapeutic relationships. We aimed to examine differences between therapists' experiences of teletherapy and in-person therapy post-pandemic with regard to three variables pertinent to the therapeutic relationship: working alliance, real relationship, and therapeutic presence. METHODS: In a sample of 826 practicing therapists, we examined these relationship variables, as well as potential moderators of these perceived differences including professional and patient characteristics and covid-related variables. RESULTS: Therapists reported feeling significantly less present in teletherapy and their perceptions of the real relationship were somewhat impacted, but there were no average effects on their perceived quality of the working alliance. Perceived differences in the real relationship did not persist with clinical experience controlled. The relative reduction in therapeutic presence in teletherapy was driven by the ratings of process-oriented therapists and therapists conducting mostly individual therapy. Evidence for moderation by covid-related issues was also found, with larger perceived differences in the working alliance reported by therapists who used teletherapy because it was mandated and/or not by choice. CONCLUSION: Our findings might have important implications for generating awareness around the therapists' lowered sense of presence in teletherapy compared to in-person teletherapy.

Comparison of the relative sensitivity of two dimensional personality models to the psychopathological symptoms: the section III DSM-5 maladaptive traits versus affective temperaments.

BACKGROUND: The Personality Inventory for DSM-5 (PID-5) and Temperament Evaluation of Memphis, Pisa, Paris, and San Diego Autoquestionnaire (TEMPS-A) are tools designed for personality dispositions for mental health symptoms. The present study was conducted to compare these models in terms of their relative sensitivity to the symptoms of personality disorders (PDs) and non-personality disorders (NPDs). METHODS: Subjects in this cross-sectional study were 1232 (805 female; 63.5%) community samples in western Iran. Data were collected using the PID-5, the TEMPS-A, the Symptom Checklist-90 (SCL-90-R), and the Personality Diagnostic Questionnaire (PDQ-4). Correlations and Regression models were used to examine associations between traits and symptoms. RESULTS: Maladaptive traits assessed by the PID-5 were more strongly associated with PD symptoms, whereas affective temperaments measured by the TEMPS-A were more strongly associated with NPD symptoms. CONCLUSION: The present findings highlighted the practical utility of both the PID-5 and TEMPS-A indicating risk for psychopathology, but also suggest a distinction between PDs and NPDs in terms of underlying personality dispositions.

Integrating and distinguishing personality and psychopathology.

OBJECTIVE: We asked authors of this Special Issue to answer the following four questions: (1) Is there evidence that personality and psychopathology can be integrated? (2) Is integration important? (3) Can they be distinguished? and (4) How can the difference be measured? METHOD: We review each of the papers and place the special issue in a historical context. RESULTS: Authors uniformly agreed that personality and psychopathology can be integrated within a common structure and that this is important. The third and fourth questions were more challenging. Though authors generally agreed that there is a distinction between the person and their mental health problems, articulations of that distinction were fuzzy and it is clear that current methods cannot adequately delineate these domains. CONCLUSIONS: We summarize the issue by offering five directions for future research: (1) develop measurement tools that distinguish between the person, the context, and their transaction, (2) measure behavior and context at multiple timescales, (3) distinguish behavior and dysfunction in measurement, (4) use multimethod data to tap different levels of behavior, and (5) examine person-specific processes. Each of these directions comes with challenges, but the payoff of resolving them will be a more principled, evidence-based, and clinically useful model for the distinction between personality and psychopathology.

Personality aspects and proenvironmental attitudes.

OBJECTIVE: Climate change is a serious threat. Personality psychologists can help address this threat by understanding what kind of people tend to endorse proenvironmental attitudes and engage in sustainable behavior. Previous research supports reliable associations between proenvironmental attitudes and personality traits. However, this research has generally aggregated different kinds of attitudes into a single composite and has focused on the domain level of personality traits. METHOD: This study explored how 10 lower-order aspects of the Big Five personality traits were related to eight different proenvironmental attitudes in three convenience samples from the United States (N = 1234; 1000) and the United Kingdom (N = 538). RESULTS: All five trait domains were related to at least one proenvironmental attitude across all three samples. Seven of eight proenvironmental attitudes could be predicted by one or more traits in all three samples. We also found evidence that the Openness aspect of Openness to Experience was a more consistent predictor of proenvironmental attitudes than the Intellect aspect. In contrast, there was little benefit in distinguishing between the aspects of other trait domains. We did not find evidence that age or political orientation moderated the associations between proenvironmental attitudes and personality. CONCLUSION: Results point to the need for more fine-grained research on individual differences in proenvironmental attitudes and behavior.

Global personality dysfunction and the relationship of pathological and normal trait domains in the DSM-5 alternative model for personality disorders.

OBJECTIVE: The DSM-5 Alternative Model of Personality Disorders distinguishes core personality dysfunction common to all personality pathology from maladaptive traits that delineate specific variants of disorder. Previous research shows the convergence between maladaptive and normal range trait domains as well as substantial correlations between maladaptive traits and core dysfunctions, leading some to conclude that personality traits and dysfunction are redundant. This study sought to examine the potential utility of the concept of core dysfunctions as a means of clarifying the nature of the relationship between maladaptive and normal-range traits. METHOD: Three nonclinical samples (n = 178, 307, and 1,008) were evaluated for personality dysfunction, maladaptive traits, and normal-range traits using different measures. RESULTS: Results indicated that: (1) normal trait domains and core dysfunction contribute independently to understanding maladaptive traits; (2) the correlation of a normal trait domain with its putative maladaptive equivalent is consistently accounted for in part by core dysfunction; and (3) the multitrait multimethod matrices of normal and maladaptive personality trait domains demonstrate appreciable discriminant validity problems that are clarified by a consideration of core dysfunction. CONCLUSION: These results suggest that maladaptive traits reflect the distinguishable contributions of core personality dysfunction (problems) and normal-range personality traits (person).

Selection and socialization effects of studying abroad.

OBJECTIVES: Studying abroad is often considered a life-changing experience. However, research on studying abroad has not always disentangled selection from socialization effects, leading to uncertainty about the actual impact of this experience. In this 4-wave longitudinal study, we examined both selection and socialization effects of a 4-week intensive study abroad program on 17 psychosocial variables related to motivation, academic achievement, well-being, and self-reflection. METHOD: We used propensity score matching and multiple-group growth curve models to examine selection and socialization effects in a sample of sojourners (n = 145) and non-sojourners (n = 291). RESULTS: We found selection effects for several variables related to students' motivation and well-being. Contrary to our predictions, we found no evidence for socialization effects of studying abroad on any of the outcome variables. CONCLUSIONS: Students who are relatively more intrinsically motivated and emotionally healthy appear to be more likely to study abroad. However, studying abroad for one month does not appear to lead to meaningful and lasting psychological change, on average. Our results highlight the need to examine both selection and socialization effects of study abroad programs with longitudinal data and well-matched comparison groups.

Idiographic and nomothetic relationships between momentary interpersonal behaviors, interpersonal complementarity, and alliance ruptures in psychotherapy.

In this study, we aimed to examine how moment-to-moment interpersonal behaviors of warmth and dominance in patients and therapists, as well as interpersonal complementarity, are related to withdrawal and confrontation ruptures as sessions unfold. Sixteen psychotherapy sessions from eight independent therapeutic dyads were sampled for the highest level of alliance ruptures from a naturalistic psychotherapy data set featuring evidence-based psychodynamic psychotherapy for patients with interpersonal problems and personality pathology. Interpersonal behaviors, complementarity, and alliance ruptures were generated every 30 s within each session. Subgrouping within group iterative multiple model estimation (S-GIMME) was used to identify an idiographic network structure for each session and examine generalizability at the nomothetic and subgroup levels. Nomothetically, patients' dominance negatively predicted therapists' dominance concurrently, but positively predicted therapists' dominance with a 30-s lag; additionally, therapists' dominance predicted their own concurrent warmth. At the subgroup level, therapists being less dominant than typical predicted more concurrent withdrawal ruptures. Idiographic modeling revealed a high degree of heterogeneity in how interpersonal behaviors are associated with ruptures. More confrontation ruptures concurrently predicted higher dominance complementarity in one subgroup. This study demonstrated the interconnection between patients' and therapists' in-session behaviors as well as the role of therapists' behaviors in momentary rupture development. This study highlights the importance of attuning and responding to individualized, momentary therapeutic contexts in navigating ruptures, and emphasizes the value of idiographic relational network approaches to aid in psychotherapy research and case conceptualization. (PsycInfo Database Record (c) 2022 APA, all rights reserved).