Research to date has shown longitudinal changes in conscientiousness during early and middle adolescence, but most studies have been conducted in Western countries. The present study aimed to examine the pattern of mean-level conscientiousness change at the transition into early adolescence among a Chinese sample using curve of factors (CUFFS)…

The present study provided a novel examination of how children's theory of mind (ToM) might be related to two maternal beliefs: (1) social dominance orientation (SDO: the belief that inequalities in society are justified) and (2) right-wing authoritarianism (RWA: a belief in following established authorities). We reasoned that these beliefs could…

Across all cultures, parents have intuitive ideas ("ethnotheories") of what undesirable child characteristics are as well as how to explain them. Yet there have been relatively few cross-cultural comparisons of parents' ethnotheories about the nature and causes of child misbehavior. 108 mothers of 5-year-old children from the United…

Callous-unemotional (CU) traits predict behavioral problems in adolescence. But little is known about early modulatory factors. Behavioral Inhibition (BI) in particular has been suggested to protect against the development of CU-traits. This temperamental predisposition is characterized by heightened environmental sensitivity. The current…

The present study used quantitative and qualitative methods to explore how lonely young people are seen from others' perspectives, in terms of their personality, behavior, and life circumstances. Data were drawn from the Environmental Risk Longitudinal Twin Study, a cohort of 2,232 individuals born in the U.K. in the mid-1990s. When participants…

Narcissistic youth use social media to engage in a variety of self-promotional behaviors, which have either antisocial or prosocial characteristics. Differing views exist to explain the processes underlying narcissistic self-promotion, either characterizing these actions as intentional, or as impulsive. This study compared intentional…

The study aimed to find out which differences and similarities emerge in the self-concepts of early and late adolescents and young, middle-aged, and older adults. A total of 822 participants, including 530 adolescents aged 9-19 (over 50% were girls) and 292 adults aged 20-71 (over 80% were women), from Estonia provided their spontaneous…

A common strategy parents use to justify their point of view during parent-child conflict is conventional reasoning, which focuses on child obedience to authority. In this brief report, we examined mothers' use of conventional justification during mother-child conflict discussions in relation to the resolution reached and children's behavior…

The current study examined the associations that children's attachment and temperament share with individual differences in jealousy behaviors in early childhood. Previous research has found that secure children display fewer jealousy behaviors than their insecure counterparts, while other research has demonstrated that children with greater…

The directionality and longitudinal course between perfectionism and academic achievement throughout adolescence remains unclear as most studies rely on cross-sectional or short-term data and many examine these associations in university students who do not represent the full spectrum of learners. Moreover, most studies are hampered by their…

The objective of this study was to examine the relation between personality traits and prosocial lie-telling in children. A sample of 187 children aged 8-12 years (M[subscript age] = 9.74 years, SD[subscript age] = 1.01) was recruited from elementary schools in the south of France. The children's prosocial lies were measured using the Helping…

Individuals feel lonely when they perceive a discrepancy between their desired and their actually experienced quantity and quality of social relationships. Prior research has demonstrated the importance of loneliness for various health-related aspects. In the present article, we extend the existing literature on loneliness by investigating its…

Rejection sensitivity is a bias toward expecting rejection that can result from negative social experiences and degrade emotional adjustment. In this study, rejection sensitivity was expected to predict patterns of adolescent social anxiety over 5 years when considered alongside other known or expected risk and protective factors: peer rejection…

Electroencephalogram (EEG) asymmetry has been widely studied across the lifespan, with multiple studies conducted in infancy. However, few have investigated frontal EEG asymmetry in the context of emotional-eliciting tasks, controlling for baseline to focus on an experimental episode response. The present study was designed to address this gap in…

The present study examines the relationship between sex, infant temperament, and childhood psychophysiological reactivity via electrodermal activity (EDA). Both temperament and EDA are known to be relatively stable traits across the lifespan reflecting individual reactivity and regulation linked to suboptimal behavioral development and risk for…