Early investigations of the neuroticism by conscientiousness interaction with regards to health have been promising, but to date, there have been no systematic investigations of this interaction that account for the various personality measurement instruments, varying populations, or aspects of health. The current study – the second of three – uses a coordinated analysis approach to test the impact of the neuroticism by conscientiousness interaction on the prevalence and incidence of chronic conditions. Using 15 pre-existing longitudinal studies ( N > 49,375), we found that conscientiousness did not moderate the relationship between neuroticism and having hypertension ( OR = 1.00,95% CI [0.98,1.02]), diabetes ( OR = 1.02[0.99,1.04]), or heart disease ( OR = 0.99[0.97,1.01]). Similarly, we found that conscientiousness did not moderate the prospective relationship between neuroticism and onset of hypertension ( OR = 0.98[0.95,1.01]), diabetes ( OR = 0.99[0.94,1.05]), or heart disease ( OR = 0.98[0.94,1.03]). Heterogeneity of effect sizes was largely nonsignificant, with one exception, indicating that the effects are consistent between datasets. Overall, we conclude that there is no evidence that healthy neuroticism, operationalized as the conscientiousness by neuroticism interaction, buffers against chronic conditions.

The present studies examined the common, but untested, theoretical assumption that those in the United States prefer negative past experiences, such as trauma, to be redeemed, to be resolved in some positive or growth-promoting fashion. Narratives of six types of traumatic events were rated by U.S adults ( n = 1872) across six samples and two studies. Confirming pre-registered hypotheses, there was a reliable preference for stories that were redeemed compared to stories that ended negatively, as well as for the narrators of redemptive stories, who were judged as likable and to have desirable personality traits. There was no support for the hypothesis that redemptive stories would be viewed as more common than non-redemptive stories, or that the relation between story type and preference would be mediated by Belief in a Just World. Implications include the compulsory nature of storying trauma and potential risks of these cultural expectations.

People’s general tendencies to view others as cold-hearted and manipulative (rather than affectionate and trustworthy) may explain defection in social dilemma situations. To capture idiosyncratic tendencies in other-perceptions, we collected mutual judgments in groups of unacquainted individuals in two studies ( N 1 = 83, N 2 = 413) and extracted perceiver effect scores using the Social Relations Model. In both studies, participants later played a public goods game. In Study 1, perceiver effects predicted cooperation beyond self-reported and group-related control variables. However, results were not replicated in a preregistered second study with higher power and a more diverse sample. We discuss implicit group norms as a likely explanation for the inconsistent findings and suggest future directions for addressing generalized expectations in social dilemmas.

In two pre-registered studies, we tracked changes in individuals’ feelings of social connection during the COVID-19 pandemic. Both studies capitalized on measures of social connection and well-being obtained prior to the COVID-19 pandemic by recruiting the same participants again in the midst of the pandemic’s upending effects. Study 1 included a sample of undergraduates from a Canadian university ( N = 467), and Study 2 included community adults primarily from the United States and the United Kingdom ( N = 336). Our results suggest that people experienced relatively little change in feelings of social connection in the face of the initial reshaping of their social lives caused by the COVID-19 pandemic. Exploratory analyses suggested that relatively extraverted individuals exhibited larger declines in social connection. However, after controlling for levels of social connection prior to the pandemic (as pre-registered), the negative effect of extraversion reversed (Study 1) or disappeared (Study 2).

Individual differences in the Big Five personality traits have emerged as predictors of health and longevity. Although there are robust protective effects for higher levels of conscientiousness, results are mixed for other personality traits. In particular, higher levels of neuroticism have significantly predicted an increased risk of mortality, no-risk at all, and even a reduced risk of dying. The current study hypothesizes that one potential reason for the discrepancy in these findings for neuroticism is that interactions among neuroticism and other key personality traits have largely been ignored. Thus, in the current study we focus on testing whether the personality traits neuroticism and conscientiousness interact to predict mortality. Specifically, we borrow from recent evidence of “healthy neuroticism” to explore whether higher levels of neuroticism are only a risk factor for increased mortality risk when conscientiousness levels are low. We conducted a pre-registered integrative data analysis using 12 different cohort studies (total N = 44,702). Although a consistent pattern emerged of higher levels of conscientiousness predicting a reduced hazard of dying, neuroticism did not show a consistent pattern of prediction. Moreover, no study provided statistical evidence of a neuroticism by conscientiousness interaction. The current findings do not support the idea that the combination of high conscientiousness and high neuroticism can be protective for longevity. Future work is needed to explore different protective factors that may buffer the negative effects of higher levels of neuroticism on health, as well as other behaviors and outcomes that may support the construct of healthy neuroticism.

Current literature suggests that neuroticism is positively associated with maladaptive life choices, likelihood of disease, and mortality. However, recent research has identified circumstances under which neuroticism is associated with positive outcomes. The current project examined whether “healthy neuroticism”, defined as the interaction of neuroticism and conscientiousness, was associated with the following health behaviors: smoking, alcohol consumption, and physical activity. Using a pre-registered multi-study coordinated integrative data analysis (IDA) approach, we investigated whether “healthy neuroticism” predicted the odds of engaging in each of the aforementioned activities. Each study estimated identical models, using the same covariates and data transformations, enabling optimal comparability of results. These results were then meta-analyzed in order to estimate an average (N-weighted) effect and to ascertain the extent of heterogeneity in the effects. Overall, these results suggest that neuroticism alone was not related to health behaviors, while individuals higher in conscientiousness were less likely to be smokers or drinkers, and more likely to engage in physical activity. In terms of the healthy neuroticism interaction of neuroticism and conscientiousness, significant interactions for smoking and physical activity suggest that the association between neuroticism and health behaviors was smaller among those high in conscientiousness. These findings lend credence to the idea that healthy neuroticism may be linked to certain health behaviors and that these effects are generalizable across several heterogeneous samples.

People’s belief in free will is shown to influence the perception of personal control in self and others. The current study tested the hypothesis that individuals who believe in free will attribute stronger personal blame to obese people and to people with mental illness (schizophrenia) for their adverse health outcomes. Results from a sample of 1110 participants showed that the belief in free will subscale is positively correlated with perceptions of the controllability of these adverse health conditions. The findings suggest that free will beliefs are correlated with attribution of blame to people with obesity and mental health issues. The study contributes to the understanding of the possible negative implications of people’s free will beliefs.

Belief system structure can be investigated by estimating belief systems as networks of interacting political attitudes, but we do not know if these estimates are replicable. In a sample of 31 countries from the World Values Survey (N = 52,826), I find that countries’ belief system networks are relatively replicable in terms of connectivity, proportion of positive edges, some centrality measures (e.g., expected influence), and the estimates of individual edges. Betweenness, closeness, and strength centrality estimates are more unstable. Belief system networks estimated with smaller samples or in countries with more unstable political systems tend to be less replicable than networks estimated with larger samples in stable political systems. Although these analyses are restricted to the items available in the World Values Survey, they show that belief system networks can be replicable, but that this replicability is related to features of the study design and the political system.

Self-regulation refers to effortful control over one’s thoughts, emotions, choices, impulses, and behaviors, and has implications for older adults’ health. Executive function, physiological, and subjective indices have all been proposed to reflect self-regulation. Pairwise associations among these indices have been previously examined; however, a self-regulation constellation encompassing all of these indices has never been tested in older adults. The present study described the relationships among indices of self-regulation and tested their between- and within-person associations with upstream personality factors (conscientiousness) and downstream psychological and physical health in 149 older adults aged 60–93 years, assessed semi-annually for five years (up to 10 waves). Indices of self-regulation were only modestly correlated with each other but were each associated with health. Better executive function was associated with better psychological and physical health between and within people, whereas higher heart rate variability was associated with psychological health within people. Better subjective self-regulation had the most between- and within-person associations with better psychological and physical health. Conscientiousness was associated with subjective self-regulation and better psychological and physical health. These findings support the non-unitary nature of self-regulation in older adults and the health relevance of each of its indices between and within older adults. The aging process may change how the indices relate to each other, and older adults may draw more on certain self-regulatory components over others, given limited resources. Subjective self-regulation may be an important final common pathway to psychological and physical health in older adults.

When working towards goals, the length and frequency of goal pursuit sessions might play a role in individuals’ goal pursuit motivation. We examined whether a more divided (frequent, shorter sessions) or a cumulated (less frequent, longer sessions) goal pursuit schedule increases people’s motivation to work towards personal goals. Across two studies ( N = 448), the underlying reasons for pursuing the goal mattered. A divided schedule was more motivating than a cumulated schedule if participants reported highly autonomous reasons (pursuing a goal due to personal interest or values), but the difference was eliminated for those reporting low autonomous reasons. We discuss how perceiving time spent on goal activities as loss, reward, or investment may explain scheduling preferences and how these may map on to preferences for scheduling financial losses and rewards outlined by prospect theory.

The performance and well-being of university students is influenced by many factors, including self-control and affect regulation, but little is known about how these factors relate. We therefore analyzed data from a multi-site research project that assessed trait self-control, affect regulation, and anxiety in a longitudinal cohort design ( N = 1314) using structural equation modeling. We specifically tested hypotheses that trait self-control, assessed upon entering school, would predict anxiety outcomes during students’ third year, and this relationship would be mediated by affect regulation styles (adaptive or maladaptive). We found that greater self-control did predict lower third-year anxiety, even after accounting for anxiety levels upon entering school. Furthermore, this relationship was partially mediated by maladaptive affect regulation, where students with greater self-control endorsed less use of maladaptive coping strategies (e.g., denial, self-blame), which in turn predicted less subsequent anxiety. In contrast, adaptive coping strategies did not mediate the relationship between trait self-control and anxiety. These findings highlight trait self-control as an important predictor of anxiety, and they identify maladaptive affect regulation as a target for interventions to promote student well-being and success.

Unlike most other mammals, humans are trichromats and have the ability to perceive the color red. An explanation for the evolution of humans’ trichromatic color vision is that it offers humans the advantage to detect ripe fruit. Apart from this explanation, psychological theories have proposed that color, especially the color red, conveys information that affects psychological functioning, but results have been mixed. Whereas studies have extensively tested effects of red on performance measures, it is unclear whether this effect generalizes to self-ratings, one of the most frequently used methods in psychological research. In line with theory and empirical evidence, we argue that exposure to red can lead to distorted responses in self-ratings on the basis of the same underlying mechanism that affects results on performance measures. We varied the font color (hue values) of self-ratings in two online studies. In a first exploratory study, we found an effect of font color on personality trait self-ratings ( N = 145). We attempted to rigorously replicate this finding in a larger sample ( N = 1,007) but did not detect any effect. The findings underline the importance of rigorous research on effects of color on psychological functioning and call into question the proposition that red has ubiquitous effects.

Past research consistently finds that the pursuit of extrinsic goals detracts from our happiness and well-being, and instead contributes to ill-being. Despite the robustness of this finding, recent research suggests that people with narcissistic tendencies are more likely to derive meaning from extrinsic goals. We conducted a high-powered (n = 576) pre-registered study to examine whether exhibiting higher narcissistic tendencies relates to perceiving materialistic pursuits as being more meaningful and how this in turn influences well-being. Results indicate that having greater narcissistic tendencies was positively associated with perceiving extrinsic goals as being more meaningful, which in turn negatively predicted subjective and eudaimonic well-being, and positively predicted depression. Overall, while it may be the case that people with narcissistic tendencies gain some hedonic benefits from materialistic pursuits, the pursuit of extrinsic goals is negatively related to well-being, as consistent with self-determination theory. All study materials, pre-registration, data, and code can be found at osf.io/8629d .

What leads personality to develop in adulthood? Values, guiding principles that apply across contexts, may capture motivation for growth and change. An essentialist trait perspective posits that personality changes only as a result of organic factors. But evidence suggests that psychosocial factors also influence personality change, especially during young adulthood. In the Life and Time study of sources of personality change in adulthood, we specifically explore ethically-relevant value priorities, those related to the relative prioritization of narrow self-interest over the concerns of a larger community. According to Rollo May ( 1967 ), “mature values”, including aspects of both self-transcendence and self-determination, should serve to diminish or prevent neurotic anxiety. This is consistent with research on materialism, which is associated with lower well-being. An index based on May’s proposal and several related constructs (materialism, unmitigated self-interest, collectivism and individualism) are tested longitudinally as possible antecedents of Big Five/Six personality trait change using bivariate LCMSR models in a national community sample ( N = 864 at Time 1). Contrary to an essentialist trait perspective, these value priorities more often preceded change in personality traits than vice-versa. Somewhat consistent with May’s theory, higher “mature” values preceded higher openness (statistically significant at the p < .005 level). Higher vertical individualism significantly preceded lower compassion, intellect and openness. At the suggestive ( p < .05) level, higher unmitigated self-interest preceded lower conscientiousness, higher vertical individualism preceded higher volatility, higher mature values preceded higher honesty/propriety and politeness, higher horizontal collectivism preceded higher orderliness, agreeableness, and assertiveness and lower intellect, and higher horizontal individualism preceded lower withdrawal. In two of three cases, suggestive personality-as-antecedent-of-values-change effects were reciprocal with the values-effects: higher conscientiousness scores reciprocally preceded lower unmitigated self-interest, and higher volatility higher vertical individualism. No significant or suggestive “stand-alone”, non-reciprocal personality on values effects were found.

Even though environmental contexts have been associated with personality development, little attention has been paid to individuals’ psychological perceptions thereof. Basic psychological needs theory assesses environments based on their levels of autonomy, competence, and relatedness support. In order to better understand the factors that drive personality development we related the support of basic psychological needs (BPN) and the individual importance ascribed to BPN support to Big Five personality development 1.5 years later. We focused on the context of the first job in a longitudinal study of young Germans ( N T1 = 1,886; M ageT1 = 18.41). Based on theory and previous research we derived multiple hypotheses and tested them simultaneously against each other with an information theoretic approach including response surface analyses. Results differed across the Big Five: Controlling for personality at T1, people who ascribed greater importance to BPN support, had higher perceptions of BPN support, and who had an incongruence between the two at T1 were higher in emotional stability and extraversion at T2. The pattern was more complex for openness, whereas individuals ascribing more importance to BPN support at T1 were more agreeable and conscientious at T2. Findings are discussed for theory and future research of personality development.

Worrying about the negative consequences of appearing imperfect to others (i.e., perfectionistic self-presentation) is conceptually related to social anxiety. Mackinnon, Battista, Sherry and Stewart ( 2014 ) tested whether perfectionistic self-presentation could predict social anxiety beyond several important covariates using a 21-day daily measurement approach. We sought to replicate Mackinnon et al.’s ( 2014 ) findings using the same daily diary methodology. Participants included 263 young adults (79.9% women; M age = 21.4) who completed a series of questionnaires once per day for 21 days. Participants completed measures of perfectionistic self-presentation, perfectionism cognitions, social anxiety, depressed mood and socially prescribed perfectionism. Intraclass correlations suggested measures had both within-subjects and between-subjects variability. Confirmatory factor analyses supported the a-priori factor structures at both levels. Using multilevel structural equation modeling, we showed that perfectionistic self-presentation predicted social anxiety even when controlling for socially prescribed perfectionism, depressed mood and perfectionism cognitions at both levels, replicating Mackinnon et al ( 2014 ). Our replication suggests that perfectionistic self-presentation is an important predictor of daily social anxiety. Intervention efforts may wish to target perfectionistic self-presentation in order to better help treat those with social anxiety. Open data/methods: https://osf.io/ty2aj/ .

The Harry Potter series describes the adventures of a boy and his peers in a fictional world at the “Hogwarts School of Witchcraft and Wizardry”. In the series, pupils get appointed to one of four groups (Houses) at the beginning of their education based on their personality traits. The author of the books has constructed an online questionnaire that allows fans to find out their House affiliation. Crysel, Cook, Schember, and Webster ( 2015 ) argued that being sorted into a particular Hogwarts House through the Sorting Hat Quiz is related to empirically established personality traits. We replicated their study while improving on sample size, methods, and analysis. Although our results are similar, effect sizes are small overall, which attenuates the claims by Crysel et al. The effect vanishes when restricting the analysis to participants who desired, but were not sorted into a particular House. On a theoretical level, we extend previous research by also analysing the relation of the Hogwarts Houses to Schwartz’s Basic Human Values but find only moderate or no relations.

Most studies have treated grandiose narcissism as a unidimensional construct and investigated its associations in cross-sectional convenience samples. The present research systematically addresses these limitations by investigating the associations of agentic and antagonistic aspects of narcissism in the interpersonal, intrapersonal, and institutional domains, cross-sectionally and longitudinally in a population-representative sample. We used data ( N = 1,526) from the representative, longitudinal German Socio-economic Panel study innovation sample (SOEP-IS). Both pre-registered and exploratory research questions regarding interpersonal, intrapersonal, and institutional outcomes of agentic and antagonistic aspects of narcissism were tested. Cross-sectional associations generally confirmed the differential adaptivity of narcissism aspects: While agentic narcissism was related to friendship, happiness, self-esteem, employment, leadership and income , antagonistic narcissism was negatively related to intrapsychic adjustment . Longitudinally, agentic aspects were positively associated with holding a leadership position while the antagonistic aspects were related to lower self-esteem and being unemployed . Additional differentiated longitudinal associations were found for different age groups with most associations being more pronounced in middle adulthood. The present research highlights the importance of studying grandiose narcissism as a two-dimensional construct, in populations that are diverse and representative of the broader population, and with outcomes relevant to the population studied.

In light of the recent worldwide migration of refugees, determinants of a more or less successful integration are heavily discussed, but reliable empirical investigations are scarce and have often focused on sociodemographic factors. In the present study, we explore the role of several individual characteristics for refugee adjustment in the areas of (a) institutional, (b) interpersonal and (c) intrapersonal adaptation. In a sample of 4,527 refugees (M = 33.6 years, 38% women), we investigated the effect of sociodemographic characteristics (age, gender, months in Germany, religious affiliation), cognitive factors (cognitive ability, educational history, language skills, integration-course participation), and personality (locus of control, risk appetite, willingness to reciprocity) on adjustment parameters. Both, cognitive skills (especially language skills) and personality, showed incremental validity beyond sociodemographic factors for refugee adjustment comparable across contextual factors. Even with respect to contextual factors such as residency status and living situation, results remained largely stable. The study provides first hints on the importance of personality, thereby providing important implications for understanding integration processes and optimizing interventions on personal, social, and societal levels.

Dong, Huang, and Zhong ( 2015 ) report five successful experiments linking brightness perception with the feeling of hopelessness. They argue that a gloomy future is psychologically represented as darkness, not just metaphorically but as an actual perceptual bias. Based on multiple results, they conclude that people who feel hopeless perceive their environment as darker and therefore prefer brighter lighting than controls. Reversely, dim lighting caused participants to feel more hopeless. However, the experiments succeed at a rate much higher than predicted by the magnitude of the reported effects. Based on the reported statistics, the estimated probability of all five experiments being fully successful, if replicated with the same sample sizes, is less than 0.016. This low rate suggests that the original findings are (perhaps unintentionally) the result of questionable research practices or publication bias. Readers should therefore be skeptical about the original results and conclusions. Finally, we discuss how to design future studies to investigate the relationship between hopelessness and brightness.