Personality Assessment in Groups of Different Verbal Intelligence Levels

The differentiation of personality by intelligence hypothesis, which has mixed support in the literature, predicts that personality is more variable for more intelligent individuals. This study aimed to test that hypothesis by comparing variances, reliability coefficients, and inter-scale correlations of personality as assessed by self-reports between groups of participants with different intelligence scores. We used two independent datasets (N1 = 655; N2 = 836; Ntotal = 1491) in which the same vocabulary test was used as a measure of verbal intelligence, but personality was measured as self-report by different inventories (NEO-FFI and HEXACO-100). As the verbal ability scores had a normal distribution, the combined mean was calculated, and empirical groups were generated within each sample to compare groups of participants who indicated a low-ability group (G1) and the high-ability group (G3). Results mostly support the differentiation hypothesis in the NEO-FFI dataset, where participants in G3 have higher variances and reliability coefficients than participants in G1, but do not show lower inter-scale correlation coefficients. However, the same trend was not found in the second sample where personality was assessed by the HEXACO inventory. In conclusion, the results of this study provide only partial support for the personality differentiation by intelligence hypothesis.

Exploring the relationship between personality traits and locus of control in early adolescence. Does gender play a role?

The main aim of this study was to analyse associations between the five-factor model personality traits and locus of control of successes and failures based on the theory of social learning and to assess whether gender moderated relationships between these variables in Polish early adolescents. The following instruments were used: the Picture Based Personality Survey for Children and the Locus of Control Questionnaire. A total of 1016 students participated in the study, including 49% boys and 51% girls. Both for girls and boys, the highest correlations were found between conscientiousness and locus of control in success situations. Neuroticism correlated negatively with the two types of locus of control. A moderating effect of gender was observed between openness to experience and locus of control of successes, and it was stronger in girls than in boys.

Depression and Personality Traits Across Adolescence-Within-Person Analyses of a Birth Cohort

Depressive symptoms and personality traits covary in adolescents, but our understanding of the nature of this relation is limited. Whereas a predisposition explanation posits that specific personality traits increase the vulnerability for developing depression, a scar explanation proposes that depression may alter premorbid personality. Attempts to test these explanatory models have relied on analyses that conflate within-person changes and between-person differences, which limits the implications that can be drawn. Moreover, research on the early adolescent years is lacking. The present study therefore examined within-person associations between depressive symptoms and Big Five personality traits across ages 10 to 16. Children (n = 817; 49.9% boys) and parents from two birth cohorts in Trondheim, Norway, were assessed biennially with clinical interviews capturing symptoms of major depressive disorder and dysthymia, and self-reported Big Five personality traits. Analyses were conducted using a random intercept cross-lagged panel model, which accounts for all unmeasured time-invariant confounding effects. Increased Neuroticism predicted an increased number of depressive symptoms-and increased depressive symptoms predicted increased Neuroticism-across ages 10 to 14. Moreover, increased depressive symptoms forecast reduced Extraversion across ages 10 to 16, and reduced Conscientiousness from ages 12 to 14. Increases in Neuroticism may contribute to the development of depressive symptoms-in line with the predisposition model. As regards the scar model, depression may have an even wider impact on personality traits: increasing Neuroticism and reducing Extraversion and Conscientiousness. These effects may already be present in the earliest adolescent years.

Construct and criterion validity of the HEXACO Medium School Inventory Extended (MSI-E)

In this cross-sectional study we aimed at: 1) validating the observer (Obs) version of HEXACO Medium School Inventory Extended (MSI-E); 2) establishing convergent and divergent construct validity of the HEXACO-MSI-E; 3) establishing criterion validity of HEXACO-MSI-E. We administered the HEXACO-MSI-E, the Big Five Questionnaire-Children (BFQ-C), the Internalizing and Externalizing scales of Youth Self Report (YSR), some items of the 2019 Middle School Youth Risk Behavior Survey (YRB) and some items about adolescents' values, beliefs, behaviors, and desired features of a possible future job to 1175 adolescents (Mage = 12.03, SD = 0.89) and the observer version of these measures (except for BFQ-C) to 854 parents or legal guardians. The factorial structure and the reliability of the Observer Report of HEXACO-MSI-E were confirmed. Convergent and divergent validity were successfully established with a version of the inventory filled out by parents. Convergent and divergent validity were also established with BFQ-C notwithstanding some only apparent anomalies. Criterion validity was established with respect to four specific groups of criteria collected in both self-report and observer form. HEXACO-MSI-E traits were more predictive with respect to self-report than to observer criteria and the majority were common. Together with the positive results of this study, implications and issues for future studies are discussed.

Conceptual and methodological issues in the study of the personality-and-culture relationship

Culture-and-personality studies were central to social science in the early 20th century and have recently been revived (as personality-and-culture studies) by trait and cross-cultural psychologists. In this article we comment on conceptual issues, including the nature of traits and the nature of the personality-and-culture relationship, and we describe methodological challenges in understanding associations between features of culture and aspects of personality. We give an overview of research hypothesizing the shaping of personality traits by culture, reviewing studies of indigenous traits, acculturation and sojourner effects, birth cohorts, social role changes, and ideological interventions. We also consider the possibility that aggregate traits affect culture, through psychological means and gene flow. In all these cases we highlight alternative explanations and the need for designs and analyses that strengthen the interpretation of observations. We offer a set of testable hypotheses based on the premises that personality is adequately described by Five-Factor Theory, and that observed differences in aggregate personality traits across cultures are veridical. It is clear that culture has dramatic effects on the thoughts, feelings, and behaviors from which we infer traits, but it is not yet clear whether, how, and in what degree culture shapes traits themselves.

Recall bias of students' affective experiences in adolescence: The role of personality and internalizing behavior

INTRODUCTION

Adolescence is characterized by multiple biopsychosocial changes, associated with a high intraindividual variability of emotional experiences. Previous findings suggest that this intraindividual variability is reflected in a recall bias of adolescents' emotion reports. However, corresponding findings are scarce and inconclusive. Studies on predictors of recall bias in adulthood indicate that personality traits, especially neuroticism and extraversion, as well as specific internalizing disorders might affect recall bias of emotion reports.

METHODS

The sample consists of 118 Swiss adolescent students in grade 8 and 9 (M_age  = 15.15, SD_age  = 0.89). The students' momentary affective experience was recorded using smartphones over seven consecutive days in situ at 42 randomly generated occasions (six per day), with a total of 1059 protocols on current events. At the end of the experience-sampling phase, students filled out an online questionnaire, providing information about their personality and typical behavior as well as their retrospective affective experience. In addition, the students' behavior was evaluated by their teachers. We applied two-level structural equation modeling with latent difference variables.

RESULTS

Adolescents high in extraversion showed retrospective overestimation of positive affective experiences and underestimation of negative affective experiences. Adolescents with high neuroticism tended to overestimate negative affect retrospectively, showing no significant effects for positive affect. However, internalizing behavior did not predict a negative recall bias in adolescents' affective experience.

CONCLUSIONS

Retrospective self-reports about adolescents' affective experience are biased by relatively stable individual factors, whereas less stable individual factors did not seem to have any influence.

Awake and Sleep Bruxism Prevalence and Their Associated Psychological Factors in First-Year University Students: A Pre-Mid-Post COVID-19 Pandemic Comparison

There is a broad consensus accepting that psychological variables such as stress, anxiety, or depression play an important role in bruxism. The COVID-19 pandemic has led to an increase in stress, anxiety, and depression levels. The purpose of this study was to evaluate the impact of the COVID-19 pandemic on possible awake and sleep bruxism prevalence and on the psychological factors associated with bruxism, comparing pre-pandemic, pandemic/lockdown, and post-pandemic samples of first-year students. A total of 274 dentistry students from the Complutense University of Madrid participated in the study: 92 from 2018/2019 (pre-pandemic), 90 from 2020/2021 (pandemic), and 92 students from 2021/2022 (post-pandemic) academic years. The participants filled out a thorough battery of validated questionnaires evaluating bruxism and different psychological characteristics, such as anxiety, depression, somatization, personality, and stress coping styles. While sleep bruxism prevalence was significantly higher for the pandemic group, awake bruxism was smaller in comparison to pre-pandemic and post-pandemic groups. The post-pandemic group also presented higher levels of neuroticism and agreeableness personality traits, and positive reappraisal than the pre-pandemic group, with the pandemic group somewhere in between. Additionally, both the pandemic and post-pandemic group showed higher levels of depression and acceptance/resignation coping styles than the pre-pandemic group. Thus, among the three groups of students, the post-pandemic group was the one that showed a larger effect of the pandemic situation in their psychological variables, presenting higher levels of anxiety (state and trait), depression, acceptation/resignation coping style, higher neuroticism (emotional instability trait), and lower agreeableness trait. Nonetheless, the increase of positive reappraisal in the post-pandemic group (an adaptive coping stress style) might be also a sign of recovery. The higher sleep bruxism for the pandemic group might be related to the pandemic situation and lockdown, passively suffered, possibly promoting feelings of impotency, increased levels of depression and acceptance/resignation (normally considered a passive/maladaptive coping style), while acute stressful situations derived from daily personal social interactions might have increased anxiety levels and induced higher levels of awake bruxism observed in both the pre-pandemic and post-pandemic groups. However, further research, including larger and more representative samples, is needed to confirm this possible relationship.

Development and validation of an instrument to measure personality in adolescence: The HEXACO Medium School Inventory Extended (MSI-E)

In this paper, we aimed at developing and validating a novel instrument to evaluate personality in 10-14 years old adolescents with six basic traits, with two dedicated studies. In Study 1, we generated a large pool of items (384 items) from three basic items sources, which we administered to 714 Italian adolescents. Using principal component analysis (PCA) and extension factor analysis, we selected the best eight items for each facet, and so the best 32 items for each factor, except for the Unconventionality facet of Openness to Experience (O) for which we selected the best six items. This resulted in a total of 190 items. The 190-item HEXACO-MSI had very good levels of dimensional validity and reliability, but it fell short in containing 8 items for each facet (i.e., for Unconventionality) and in balancing normal and reversed items within each facet. Therefore, in a second study we added items to the scale and verified again the dimensionality and reliability with the goal of developing a final version of the scale. In Study 2, we administered a version of the HEXACO-MSI consisting of 219 items to 1175 Italian adolescents. Using principal component analysis (PCA), we selected the best eight items for each facet equally balanced between normal and reversed items within each facet and factor. Confirmatory factor analysis (CFA) confirmed the six-factor structure and its invariance. The results showed that the HEXACO-MSI-E had a clear six-factor structure in adolescents, that was invariant across gender and across the three middle school classes, and was reliable. Finally, we established temporal stability of each factor in two measurements after one year. Together with the positive results of this contribution, we discussed some aspects for future studies.

Does intelligence predict development of investment traits from mid to late adolescence? Evidence from a 3-year longitudinal study

INTRODUCTION

Investment theories have claimed reciprocal relations between intelligence and investment traits (i.e., personality traits related to seeking out, and dealing with, cognitive challenges). However, previous research has primarily addressed the effects of investment traits on intellectual development (environmental enrichment hypothesis) and often focused on either childhood or later adulthood. The present study investigated the effects of intelligence on investment traits (environmental success hypothesis) from mid to late adolescence.

METHOD

In a 3-year longitudinal survey (2008-2011) covering four measurement occasions, the predictive effects of both fluid and crystallized intelligence on intraindividual change in both the achievement motive (i.e., hope for success and fear of failure) and need for cognition were examined. Overall, 476 adolescents (t₁ : M_age  = 16.43, SD = 0.55; 51.3% girls) from Germany participated.

RESULTS

Second-order latent growth models indicated that fluid intelligence predicted a steeper growth in hope for success (β = .40), but was unrelated to change in the other investment traits. Crystallized intelligence had no effects on the investment traits under study.

CONCLUSIONS

The results contribute to the research on the bidirectionality of intelligence and investment traits and add to our understanding of personality development from mid to late adolescence. Specifically, they underline the importance of nurturing hope for success especially in individuals with lower intelligence, but also show that support for the environmental success hypothesis seems to be limited to certain investment traits.

The Relationship between Personality Traits and Facebook Addiction among Adolescents in an Urban, Rural and Semi-Rural Secondary School

Facebook is and was intended to provide a place for friends to connect within the bustling academic environment and to encourage openness for ideas and interests. When used sparingly, it can provide an individual with a sense of group belonging and connection, sharing and offering hope and advice. The misuse of Facebook can have detrimental effects on one's quality of life that often lead to addiction. In this correlation design study, secondary-school-aged adolescents' Facebook addiction was compared to personality attributes. Through a convenience sample, 240 teenagers in total (106 men and 134 females) were chosen. The respondents answered questions about their demographics, Facebook Addiction, and Junior Eysenck Personality. The findings showed a substantial inverse correlation between Facebook addiction and neuroticism (r = -0.260, p < 0.01) and psychoticism (r = -0.189, p < 0.01). There was no discernible statistical link between Facebook Addiction and Extraversion. The study comes to the conclusion that although social networking sites such as Facebook have good effects on adolescents' lives, their use needs to be regulated, the risks were highlighted, and at-risk individuals can receive intervention approaches, such as social skills training.

Personality development in adolescence: Examining big five trait trajectories in differential learning environments

This study addresses two questions: Do Big Five traits change from early to middle adolescence? How do developmental trajectories differ between educational environments (i.e., secondary school tracks)? We used a representative random sample from Germany, following 6th graders (T1, N = 1662; age: M = 11.68; SD = 0.63; female = 47.4%; from N = 87 primary schools) to the end of compulsory secondary education over three measurement points (i.e., assessing students in 6th, 7th, and 9th grade). Results of latent change modeling indicated overall increases in mean levels for all personality traits from early to middle adolescence. Regarding selection effects, the results indicated that more conscientious, agreeable, extraverted, open, and emotionally stable sixth graders were more likely to transit into an academic rather than a non-academic secondary school track. Moreover, the results showed that these initial differences in personality traits seemed to diminish between 6th and 9th grade for all personality traits. Additionally, controlling for selection effects, a contextual effect was discernible for conscientiousness. This study highlighted the potential role of differential learning environments for modifying changes in personality traits during adolescence.

Social expectations and abilities to meet them as possible mechanisms of youth personality development

OBJECTIVE

Personality traits change from childhood through late-adolescence, however the effects of social expectations and self-regulatory efforts remain unknown. This study aims to explore mechanisms underlying personality development by assessing mean levels personality traits from childhood to late-adolescence.

METHOD

We used Common-Language California Child Q-Set to measure youths' (N=11,000) mean personality trait levels; social expectations for these traits as perceived by parents (N=47), teachers (N=42) and students (N=120); and self-regulatory efforts required for achieving the desired levels in these traits as perceived by parents (N=27), teachers (N=26) and students (N=54).

RESULTS

Expectations for youths' traits were consistent, regardless of raters' or youths' age. In our unique between-trait study design, traits' mean levels were positively associated with expectations for them, but age differences minimally tracked these expectations. Traits' required self-regulatory efforts were not associated with their developmental trends.

CONCLUSIONS

Results were only partially consistent with existing developmental theories of personality development.

A Comprehensive and Person-Centered View of the Association Between the Dark Triad and Youth Mental Health

Using a dual person-centered approach, the current study examined the Dark Triad profiles and mental health profiles among a large-scale sample of high school students. The study also simultaneously examined whether the emerging Dark Triad profiles could diverge in mental health profiles, delineating a thorough, and person-centered view of this association. To achieve these research aims, 1,640 Chinese high school students (M age = 16.78; SD = 0.68; 57.6% females) participated in this study, and they were uniformly instructed to complete a set of well-established questionnaires. Results from latent profile analyses revealed five Dark Triad profiles-low Machiavellianism-psychopathy (7.4%), benevolent (61.7%), highly malevolent (6.7%), low narcissism (8.8%), and malevolent (15.4%)-and the following four mental health profiles: flourishing (37.7%), vulnerable (16.4%), troubled (33.9%), and highly troubled (12.4%). Moreover, results from multiple multinomial regression analyses showed that, among all five empirically derived Dark Triad profiles, students with the low Machiavellianism-psychopathy profile exhibited the highest probability of being "flourishing," whereas those with the low narcissism profile showed the highest likelihood of being "highly troubled."

Fluid Intelligence and Competence Development in Secondary Schooling: No Evidence for a Moderating Role of Conscientiousness

Fluid intelligence and conscientiousness are important predictors of students’ academic performance and competence gains. Although their individual contributions have been widely acknowledged, less is known about their potential interplay. Do students profit disproportionately from being both smart and conscientious? We addressed this question using longitudinal data from two large student samples of the German National Educational Panel Study. In the first sample, we analyzed reading and mathematics competencies of 3778 fourth graders (Mage = 9.29, 51% female) and gains therein until grade 7. In the second sample, we analyzed the same competencies in 4942 seventh graders (Mage = 12.49, 49% female) and gains therein until grade 9. The results of (moderated) latent change score models supported fluid intelligence as the most consistent predictor of competence levels and gains, whereas conscientiousness predicted initial competence levels in mathematics and reading as well as gains in mathematics (but not reading) only in the older sample. There was no evidence for interaction effects between fluid intelligence and conscientiousness. We found only one statistically significant synergistic interaction in the older sample for gains in reading competence, which disappeared when including covariates. Although our findings point to largely independent effects of fluid intelligence and conscientiousness on competence gains, we delineate avenues for future research to illuminate their potential interplay.

Development of a 50-Item Abridged Form of the Junior Spanish Version of the NEO Questionnaire (JS NEO-A50)

Abstract. The aim of this psychometric study was to construct an abridged 50-item form, 10 for each of the five factors of personality, of the Junior Spanish version of the NEO-PI-R (JS NEO-A50). Two separate studies were conducted. In Study 1, 400 high school students completed two personality scales to examine the factor structure (exploratory factor analysis), convergent validity, and reliability of the JS NEO-A50. In Study 2, an independent sample of 385 adolescents completed the JS NEO-A50 and several outcome measures to replicate the factor structure (exploratory structural equation model) and examine criterion validity, respectively. The five-factor structure found in Study 1 was satisfactorily replicated in the second, independent sample. Sources of reliability (internal consistency and test-retest) and validity (convergent) were adequate. Also, the outcome measures assessed in Study 2 were related to personality traits in the expected direction. Life satisfaction was significantly predicted by emotional stability; symptoms of behavioral problems were predicted by low scores in both agreeableness and conscientiousness while internalizing emotional symptoms were mainly predicted by emotional instability; finally, academic performance was mainly predicted by conscientiousness. We conclude that the JS NEO-A50 is a sound inventory to measure the five broad personality domains in Spanish-speaking adolescents.

Entrepreneurial tendency across the adult lifespan

This study examines whether age associates with entrepreneurship tendencies across the lifespan, after taking into account aspects of personality that affect entrepreneurship. Participants (N = 963) aged 18–81, including 200 actual entrepreneurs, completed questionnaires about entrepreneurship tendency, personality traits, and attachment orientations. Results show that age is associated with a reduced tendency to engage in entrepreneurial activity. However, this decline is quite limited, it weakens with age, and is absent after age 50. In addition, the negative association of age with entrepreneurial tendency is smaller in participants with above-median entrepreneurship tendency scores relative to those with below-median scores, and it disappears in actual entrepreneurs. Furthermore, most of the traits that have been previously associated with entrepreneurial tendencies, especially Openness to Experience and Extraversion, remain unchanged with age, accounting for the stability of entrepreneurial tendency over time. The results have implications for policy makers who wish to encourage older adults to engage in entrepreneurial activity.

Personality trait by intelligence interaction effects on grades tend to be synergistic

BACKGROUND

Earlier research has identified both synergistic and compensatory personality traits by intelligence interaction effects on academic performance.

METHODS

The present study employed data on intelligence, personality traits, and academic performance in the 1997 National Longitudinal Survey of Youth (NLSY97, N = 8984).

RESULTS

Some intelligence by personality trait interaction effects, mainly involving indicators of dependability, on high school grades were identified. The interaction effects tended to be synergistic, meaning that the association between the trait and grades tended to strengthen with increased intelligence. A positive association between intelligence and the reliability in the measurement of a dependability composite score accounted for a substantial portion of the synergistic dependability by intelligence interaction effect on academic performance.

CONCLUSIONS

Personality trait by intelligence interaction effects on academic performance tend to be synergistic and may, at least to some degree, be due to a positive association between intelligence and reliability in the measurement of personality traits.

Age and gender differences in personality traits from early childhood through adolescence

OBJECTIVE

Most research on personality development has employed self-report questionnaires and concerned individuals older than 10 years. This is the first study to examine mean-level age differences in personality traits from early childhood to late adolescence in the non-Western cultural context.

METHOD

Personality was measured in two community samples of parent reports of 2-18-year-old children (N = 4,330) and self-reports of 10-19-year-old adolescents (N = 4,663) from Russia by the Inventory of Child Individual Differences-Short version (ICID-S) at the three levels of the hierarchy, the two higher order traits, the Big Five, and lower order traits.

RESULTS

Across childhood, the Agreeableness, Conscientiousness, and Neuroticism traits increased, and the Extraversion and Openness traits decreased. In adolescence, parent-reported Conscientiousness traits increased and Neuroticism traits decreased, whereas youth-rated Alpha and Agreeableness decreased in middle adolescence. There were small gender differences in trait levels and age trends. Parents and youths did not agree on gender differences in age trends for Neuroticism and Extraversion.

CONCLUSION

The findings support personality maturation from early childhood to late adolescence, with the exception of increasing Neuroticism across childhood, and provide some evidence for the disruption in personality maturation in adolescence. Parents and adolescents may have different perspectives on personality development.

Stability and change in adolescents' personality: a longitudinal study

The present study examined three types of personality change and continuity (mean‐level, individual‐level, and rank‐order stability) over the 2‐year period in a nationally representative longitudinal sample of Estonian adolescents (N = 876) aged 12–18. According to the Reliable Change Index, 82.1% of adolescents maintained the same level on any given personality trait measured by the NEO Five‐Factorial Inventory (NEO‐FFI) indicating that the individual‐level continuity of adolescents did not differ compared to young adults. A reliable increase was found in Openness. Across the five dimensions, the average test–retest correlations were 0.51, 0.56 and 0.67, and the computed biennial stability values were 0.80, 0.83 and 0.89 for age groups 12 → 14, 14 → 16 and 16 → 18 years, respectively. Neither intelligence nor school performance moderated the differential continuity. Copyright © 2006 John Wiley & Sons, Ltd.

A study of personality in children aged 8–12 years: Comparing self‐ and parents' ratings

This cross‐sectional study was designed to investigate personality in children aged 8–12 years. Children's self‐perceptions were compared to parent's ratings. Parents of 506 children completed the Hierarchical Personality Inventory for Children (HiPIC) and children completed a selection of 38 questions from the HiPIC. Results showed that children aged 11–12 years present higher structural congruence, higher reliabilities and higher mean correlation with parents' description than children aged 8–9 years. Interestingly reliabilities of parents' ratings were also higher for older children. Mean levels were higher in younger children for Imagination in parents' ratings and for Benevolence, Conscientiousness and Imagination, in children's ratings. Copyright © 2008 John Wiley & Sons, Ltd.

Stressful Events and Temperament Change during Early and Middle Adolescence: The TRAILS Study

This project investigates how stressful events are related to deviations from normative temperament development during adolescence. Temperament traits were assessed at ages 11 and 16 years. Life–event data was captured using an interview (total n = 1197). Normative changes were found in all traits. A linear trend was found between the experience of stressful events and temperament development. Adolescents exposed to stressful events showed smaller decreases in fear and shyness, stronger decreases in effortful control and affiliation and smaller increases in high intensity pleasure. Exposure to stressful events was related to increases in frustration instead of decreases. Our results show that whereas normative development is mostly in the direction of maturation, adolescents who experienced stressful events showed less maturation of their temperament. Copyright © 2011 John Wiley & Sons, Ltd.

Big Five personality development in adolescence and adulthood

The present article examines Big Five personality development across adolescence and middle adulthood. Two adolescents and their fathers and mothers from 285 Dutch families rated their own and their family members' personality. Using accelerated longitudinal growth curve analyses, mean level change in Big Five factors was estimated. For boys, Extraversion and Openness decreased and for girls, Extraversion, Agreeableness, Conscientiousness, and Openness increased. Whereas mothers' Emotional Stability and Conscientiousness increased, fathers' Extraversion, Agreeableness, and Emotional Stability decreased. Differences in self‐ and other‐reported personality change were found, as well as interindividual differences in personality change. Results confirm that personality change is possible across the life course but these changes are not similar for all individuals and depend on the type of observer. Copyright © 2006 John Wiley & Sons, Ltd.

The HEXACO-Middle School Inventory (MSI)

Abstract. We developed and validated a novel measure, the 6-factor personality HEXACO-Middle School Inventory (MSI). We started with a pool of 16 items for each of the six dimensions of the HEXACO. In Study 1, we administered the HEXACO-MSI to 1,089 Italian children and the Observer version to their parents. Using principal component analyses (PCA) and extension factor analysis (EFA), we selected the best eight items for each dimension. Confirmatory factor analysis (CFA) confirmed the 6-factor dimensionality and its invariance. Internal consistency of each dimension was adequate. Convergent and divergent validity were successfully established with a version of the scale filled by parents. Convergent validity was also established with the Big Five Questionnaire – Children (BFQ-Children) whereas divergent validity was less clear-cut. Conscientiousness, Honesty-Humility, and eXtraversion demonstrated predictive validity of school marks (criterion validity). In Study 2 ( N = 317), we replicated dimensionality, internal consistency, and established test-retest reliability of each dimension in two measurements at a 1 month distance. The HEXACO-MSI showed a clear personality structure organized in six traits, and evidence of predictive validity of relevant school criteria particularly via Conscientiousness, Honesty-Humility, and eXtraversion.

Impact of personality on adherence to and beliefs about ADHD medication, and perceptions of ADHD in adolescents

BACKGROUND

Adherence to attention deficit hyperactivity disorder (ADHD) medication can prevent serious consequences, possibly with lifelong effects. Numerous factors have been observed that influence adherent behaviour, but the impact of personality traits has been inadequately explored. The purpose of this study was to explore the associations between personality traits and adherence to ADHD medication, beliefs about the medication, and perceptions of ADHD.

METHOD

Adolescents (n = 99) on ADHD medication were administered: Health-Relevant Personality Traits Five-Factor Inventory, Medication Adherence Report Scale, Beliefs about Medicines Specific and Brief Illness Perceptions Questionnaires.

RESULTS

The personality trait Antagonism correlated with adherence behaviour (r = - 0.198, p = 0.005) and perceived personal control of ADHD (r = - 0.269, p = 0.007). Negative Affectivity correlated with beliefs regarding necessity (r = 0.319, p = 0.001), concerns (r = 0.344, p = 0.001), and experienced side effects of medication (r = 0.495, p = 0.001), alongside perceptions regarding duration (r = 0.272, p = 0.007), identity (r = 0.388, p < 0.001), being emotionally affected (r = 0.374, p < 0.01), personal control (r = - 0.287, p = 0.004) and concerns about ADHD (r = 0.465, p < 0.001). Impulsivity correlated with perceived consequences (r = - 0.226, p = 0.0255) and personal control of ADHD (r = - 0.379, p < 0.001). Hedonic Capacity correlated with concerns about medication (r = - 0.218, p = 0.0316) and perceived identification with ADHD (r = - 0.203, p = 0.045).

CONCLUSION

Personality traits are related to adherence, beliefs about ADHD medicines and perceptions of ADHD. Antagonism is associated with adherence, especially intentional non-adherence, while Negative Affectivity correlates with numerous perceptions of ADHD and beliefs about medications. Personality assessments could be useful in the care and treatment of adolescents with ADHD.

Robustness of the Maladaptive Personality Plaster: An Investigation of Stability of the PSY-5-r in Adults over 20 Years

The long-term stability of maladaptive personality traits in the general population has been under-investigated. The current study examined the longitudinal 20-year mean-level stability and rank-order consistency of five maladaptive personality traits-as measured with the Personality Psychopathology-5-r scales. Correlations and regression analysis were conducted to test both types of stability comparing raw scores of scale administrations in a general population sample in both 1992 and 2012 (N = 65). Repeated measures analysis of variance demonstrated significant mean-level stability of the PSY-5-r traits over 20 years. The PSY-5-r scales demonstrated significant rank-order consistency as evidenced by correlational analyses and reliability coefficients. The scales Aggressiveness-r (r = .73), Neuroticism/Negative Emotionality-r (r = .65), Introversion/Low Positive Emotionality-r (r = .63), and Disconstraint-r (r = .56), evidenced strong rank-order stability, whereas Psychoticism-r (r = .3) showed moderate rank-order consistency. The results of the present study indicate that maladaptive personality traits as measured with the PSY-5-r scales are relatively stable over 20 years in an adult community population.

Personality Across the Lifespan

Abstract. Personality is a relevant predictor for important life outcomes across the entire lifespan. Although previous studies have suggested the comparability of the measurement of the Big Five personality traits across adulthood, the generalizability to childhood is largely unknown. The present study investigated the structure of the Big Five personality traits assessed with the Big Five Inventory-SOEP Version (BFI-S; SOEP = Socio-Economic Panel) across a broad age range spanning 11–84 years. We used two samples of N = 1,090 children (52% female, Mage = 11.87) and N = 18,789 adults (53% female, Mage = 51.09), estimating a multigroup CFA analysis across four age groups (late childhood: 11–14 years; early adulthood: 17–30 years; middle adulthood: 31–60 years; late adulthood: 61–84 years). Our results indicated the comparability of the personality trait metric in terms of general factor structure, loading patterns, and the majority of intercepts across all age groups. Therefore, the findings suggest both a reliable assessment of the Big Five personality traits with the BFI-S even in late childhood and a vastly comparable metric across age groups.

Personality-achievement associations in adolescence-examining associations across grade levels and learning environments

OBJECTIVE

This study examined associations between the five-factor personality traits and indicators of academic achievement (grades and test scores). A particular aim was to investigate whether personality-achievement associations differ between primary and secondary educational contexts and whether these differences vary between differential learning environments, that is academic versus nonacademic secondary schools.

METHOD

We used two representative random samples from Germany: N = 3,658 6th graders in their last year of primary school and N = 2,129 9th graders attending different secondary school tracks (n = 566 academic track students; n = 1,563 nonacademic track students).

RESULTS

First, our results confirmed positive associations between Conscientiousness, Openness, Extraversion, and Agreeableness and academic achievement as well as negative associations between academic achievement and Neuroticism. Second, associations with Conscientiousness were more pronounced for school grades than for test scores. Third, associations were higher for 6th than for 9th graders in the overall sample for all personality traits with the exception of Openness. Fourth, personality-achievement associations differed between academic and nonacademic track students.

CONCLUSION

In sum, our results suggest the need for an educational stage-specific perspective and contextually sensitive approach when examining personality-achievement associations.

Personality Across the Life Span

Trait stability and maturation are fundamental principles of contemporary personality psychology and have been shown to hold across many cultures. However, it has proven difficult to move beyond these general findings to a detailed account of trait development. There are pervasive and unexplained inconsistencies across studies that may be due to ( a) insufficient attention to measurement error, ( b) subtle but age-sensitive differences in alternative measures of the same trait, or ( c) different perspectives reflected in self-reports and observer ratings. Multiscale, multimethod-and ideally multinational-studies are needed. Several hypotheses have been proposed to account for trait stability and change, but supporting evidence is currently weak or indirect; trait development is a fertile if sometimes frustrating field for theory and research. Beyond traits, there are approaches to personality development that are of interest to students of adult development, and these may be fruitfully addressed from a trait perspective.

Against all odds - is a more differentiated view of personality development in emerging adulthood needed? The case of young apprentices

Personality development in emerging adults who do not attend college after high school has been largely overlooked so far. In this study, we investigated personality development in emerging German adults (N_{T 1}  = 1,886, M_ageT1  = 18.01 years, 29% female) undergoing vocational education and training (VET). The trainees were assessed at the start of VET, 1.5 years later, and another 1.5 years after that, just before graduation. Longitudinal latent change score analyses were applied. Bivariate analyses investigated life satisfaction and job strain as social and work-related aspects that are potentially reciprocally related to personality development. Mean-level personality changes included increases in neuroticism and decreases in agreeableness and conscientiousness in the first interval. In the second interval, neuroticism decreased and conscientiousness increased. Simultaneously, trainees reported a gradual decrease in extraversion and openness across the 3-year time span. Personality, especially agreeableness and conscientiousness, emerged as a stronger predictor of changes in job strain and life satisfaction than vice versa. For example, more agreeable and more conscientious trainees subsequently showed increases in life satisfaction. Trainees reporting higher job strain subsequently showed decreases in agreeableness. Trajectories of personality development partly support the maturity principle that has been established in many college student samples.

Ability Tests Measure Personality, Personality Tests Measure Ability: Disentangling Construct and Method in Evaluating the Relationship between Personality and Ability

Although personality and cognitive ability are separate (sets of) constructs, we argue and demonstrate in this article that their effects are difficult to tease apart, because personality affects the performance on cognitive tests and cognitive ability affects the item responses on personality assessments. Cognitive ability is typically measured with tests of items with correct answers; personality is typically measured with rating-scale self-reports. Oftentimes conclusions regarding the personality-ability relationship have as much to do with measurement methods as with the construct similarities and differences. In this article, we review key issues that touch on the relationship between cognitive ability and personality. These include the construct-method distinction, sources of test score variance, the maximal vs. typical performance distinction, and the special role for motivation in low-stakes testing. We review a general response model for cognitive and personality tests that recognizes those sources of test score variance. We then review the approaches for measuring personality through performance (objective personality tests, grit game, coding speed, economic preferences, and confidence), test and survey behavior (survey effort, response time, and item position effects), and real-world behavior (study time, registration latency, behavior residue, and social media). We also discuss ability effects on personality tests, indicated by age and cognitive ability effects, anchoring vignette rating errors, and instructions to 'fake good'. We conclude with a discussion of the implications for our understanding of personality and ability differences, and suggestions for integrating the fields.

Sequences of maladaptation: Preadolescent self-regulation, adolescent negative social interactions, and young adult psychopathology

This study aims to test whether adolescent negative social interactions mediate the relation between early adolescent self-regulatory capacities and young adult psychopathology, using a fully prospective mediation model. Data were derived from the Tracking Adolescents' Individual Lives Survey, a large population cohort of Dutch adolescents (n = 962). At age 11, three indicators of self-regulation were assessed: low frustration, high effortful control, and high response inhibition. Negative social interactions between ages 11 and 22 were captured twice using the Event History Calendar. Psychopathology (i.e., internalizing and externalizing problems) was assessed at ages 11 and 22. Findings indicate that adolescents' frustration and effortful control but not response inhibition assessed at age 11 are related to both internalizing and externalizing problems at age 22, after controlling for psychopathology at age 11, sex, and socioeconomic status. These associations were partly (about 22%) mediated by the negative social interactions adolescents experienced. Effect sizes were all modest. This study shows that self-regulation is related to subsequent psychopathology in part through its effect on negative social interactions, providing evidence for sequences of self-regulatory capacities, life experiences, and developmental outcomes.

A prospective study on the reciprocal influence between personality and attitudes, behaviors, and psychological characteristics salient in eating disorders in a sample of non-clinical adolescents

Eating disorders are mosy likely to occur for the first time in adolescence. Delineating vulnerable personality profiles of unhealthy conditions helps prevent their onset and development. This study investigated a non-clinical sample of 142 adolescents and how some theoretically salient individual differences in personality contribute to predict changes in behaviors, attitudes, and psychological characteristics that are clinically significant in eating disorders (EDs). The results from cross-lagged pattern analyses supported the influence of depression, obsessiveness, and self-esteem in the trajectories favoring the development of psychological characteristics, such as ineffectiveness and interoceptive awareness, which are salient in the ED risk process. Results also confirmed that body mass index, perfectionism, and body dissatisfaction predict increases in dysfunctional concerns with weight control and food consumption. Empirical support for the impact of ED-relevant variables on personality self-views emerged as well. Trajectories linking EDs and personality in relation to sex differences and permeability to transitory psychological conditions in adolescence were also confirmed.

Agreement Among Adolescents, Parents, and Teachers on Adolescent Personality

Agreement between adolescents, mothers, fathers, and teachers on adolescents’ personality traits was investigated in a longitudinal study. The targets for personality ratings were the adolescents who participated in the European Youth Heart Study in Estonia. There were 593 participants in the first wave and 480 participants in the follow-up study 3 years later. Adolescents’ self-reports as well as father, mother, and teacher ratings were collected using questionnaires to measure the five-factor model of personality. In both waves, inter-rater agreement was highest between mothers and fathers, was low to moderate for parent-self ratings, and was lowest for ratings between self and teacher, mother and teacher, and father and teacher. Test-retest correlations were moderate for parent and self-ratings but failed to reach statistical significance for three of the five teacher-rated traits, suggesting lower reliability of teacher ratings. Possible explanations for the low agreement between teachers and other judges are discussed.

Личност, кариерни интереси и стратегии за професионална реализация в годините на възникващата зрелост (18-29 г)

Една от психосоциалните задачи на развитието през годините на възникващата зрелост (18-29 г.) е свързана с избора на кариера. Настоящата статия се опитва да изясни професионалната идентичност на младите хора в България, посредством техните кариерни интереси, стратегии за трудова реализация и личностни особености. Извадката се състои от 257 изследвани лица на възраст 18-29 г. Използвана е скалата на Орегон за измерване на професионалните интереси - ORVIS (Pozzebon, Visser, Ashton, Lee, & Goldberg, 2010), въпросник за изучаване на алтернативи и стратегии за трудова реализация (Bozhinova, 2003) и въпросник за измерване на пет факторната структура на личността - Big Five model (Costa & McCrae, 1992). Резултатите от изследването показаха, че в годините на възникваща зрелост се открояват професионалните интереси Креативност, Алтруизъм и Лидерство в комбинация със средноактивна стратегия за реализация и ориентиране на пазара на труда. Личностните фактори, които доминират, са Съзнателност, Отвореност към опита и Доброжелателност. Петте фактора на личността си взаимодействат слабо със седем от осемте професионални интереса при младежите. Трите типа стратегии за трудова реализация си взаимодействат от слабо до умерено с някои от големите пет фактора на личността и осемте професионални интереси по скалата на Орегон.

The relationship between temperament and character and psychotic-like experiences in healthy children and adolescents

BACKGROUND

Prior work by our group identified personality profiles associated with psychotic-like experiences (PLE's) in healthy adults that were strikingly similar to those found in schizophrenia patients, with the exception of two key differences. Specifically, higher levels of PLE's were linked to higher persistence and cooperativeness, suggesting that these characteristics might represent personality-based resilience factors. Notably, age and personality were significantly correlated in these data, raising questions about whether healthy children and adolescents would show similar results. To date, no study has examined personality profiles associated with both positive and negative PLE's in healthy children and adolescents using Cloninger's Temperament and Character Inventory (TCI). Thus, this study examined the relationship between TCI dimensions and PLE's in healthy children and adolescents.

METHOD

The TCI and the Community Assessment of Psychic Experiences (CAPE) were administered to 123 healthy children and adolescents aged 8-18. Multiple regression models were used to examine personality dimensions associated with overall severity of PLE's as well as severity of positive and negative PLE's separately.

RESULTS

Positive, negative, and overall PLE severity were all associated with a personality pattern of higher harm avoidance and lower self-directedness. Negative PLE severity was also associated with lower persistence.

CONCLUSIONS

Personality correlates of PLE's in healthy children and adolescents were largely consistent with our past work on PLE's in healthy adults. However, our previously identified resilience factors were notably absent in this sample. These findings may suggest that these personality characteristics have not yet crystallized or emerged to aid in coping with PLE's.

Personality trait change across late childhood to young adulthood: Evidence for nonlinearity and sex differences in change

We explored patterns of self-reported personality trait change across late childhood through young adulthood in a sample assessed up to 4 times on the lower-order facets of Positive Emotionality (PEM), Negative Emotionality (NEM), and Constraint (CON). Multilevel modeling analyses were used to describe both group- and individual-level change trajectories across this time span. There was evidence for nonlinear age-related change in most traits, and substantial individual differences in change for all traits. Gender differences were detected in the change trajectories for several facets of NEM and CON. Findings add to the literature on personality development by demonstrating robust nonlinear change in several traits across late childhood to young adulthood, as well as deviations from normative patterns of maturation at the earliest ages.