Adolescence is a sensitive period typified by marked cognitive and neural development, during which modifiable lifestyle factors may be particularly relevant. However, longitudinal associations of modifiable lifestyle factors-including sleep, screen time, and extracurricular activities-with cognitive development over time remain to be investigated, leaving the directionality of these relationships unclear.

Positive racial and ethnic identity formation is associated with psychological well-being, especially for Black adolescents. Parental socialization and school-related factors are key influences that have been studied, but less is known about other factors in an adolescent's social ecology, such as out-of-school activities. The goal of the present study was to better understand the relation between out-of-school activity (i.e., after-school hours and summer months) participation and racial and ethnic identity among Black adolescents.

Despite evidence linking parenting with adolescent technology use, research has seldom examined their bidirectional longitudinal associations and the specific role of emotion-related communication-a key aspect of family communication central to adolescent adjustment-in adolescents' technology use remains under-examined. To address these gaps, this study explored the relationships between adolescents' problematic social media use and internet gaming and parent-adolescent communication patterns regarding adolescents' negative emotions.

Chronic absenteeism, defined as missing 10% or more school days annually, negatively impacts academic achievement and correlates with long-term risks like poverty, poor health, and criminal behavior. While prior research has focused on full-day absences, partial-day absences, missing portions of the school day, are more prevalent and may have detrimental effects on academic outcomes. Despite this significance, PDAs are underexplored, leaving gaps in understanding their prevalence, causes, and impact. This study seeks to address these gaps and provide insights to guide comprehensive absenteeism interventions.

Adolescents' life satisfaction is shaped by both proximal school experiences and broader societal environments. School bullying poses a substantial threat to youths' well-being while positive student-teacher relationships may serve as a critical source of protection. This study examines how school bullying, student-teacher relationships and country-level social environments jointly influence life satisfaction among 15-year-olds across 30 OECD countries.

Sexting has become a common practice among adolescents and young adults. Certain psychological variables influence behavioral patterns, in turn increasing, in some cases, negative consequences. In other sexual behaviors, variables such as impulsivity, self-esteem or romantic love myths have been associated with behavioral patterns and consequences by gender, but the evidence regarding sexting is still unclear. For this reason, the present study analyzes sexting behaviors (sending, responding and posting), motives and attitudes, as well as the role of significant psychological variables (motives and attitudes towards sexting, myths of romantic love, perceived emotional distress, self-esteem, impulsivity, secure attachment, and perception of social relationships) in the engagement in sexting in Spanish adolescents and emerging adults.

This three-wave longitudinal study examined the reciprocal relationships among perceived parental support, career exploration, and career aspiration trajectories in adolescents, with a focus on collectivist cultural context. The research aimed to clarify how these variables dynamically influence one another during high school and whether gender differences exist in their developmental patterns.

LGBTQIA+ individuals face significant health disparities compared to their cisgender, heterosexual, and endosex peers, largely due to the cumulative effects of minority stress. Despite puberty being a formative and often stressful developmental period, LGBTQIA+ populations remain underrepresented in puberty research. This scoping review examined the extent and nature of existing research on puberty among LGBTQIA+ populations, focusing on representation across identities, research methodologies, measures of pubertal development, and associations with health outcomes.

The school-to-work transition presents a crucial period in young adults' identity development, during which the formation of a job identity becomes a key developmental task. However, job identity development during this transition and the individual traits that predict it remain unexplored. This study aimed to examine job identity development among Japanese youth during their first year of employment and investigate whether the Big Five personality traits and life satisfaction during university predicted job identity after entering the workforce.

Social media has become an important aspect of adolescents' social lives, interacting with offline interactions to shape adolescent development. However, little is known about how adolescents' interactions on social media affect their real-life experiences. This study investigated how the social media experiences of adolescents from racially minoritized groups, particularly their social media time and exposure to same-race members on social media, are linked to their school-based social adjustment.

Start or end of a romance is a major life event during adolescence. This study explored both cross-sectional and longitudinal associations between romantic involvement and suicidal behavior among Chinese adolescents.

DISCOVER is a Cognitive Behavioural Therapy based intervention for anxiety and depression in 16-18-year-olds delivered in schools, shown to be clinically and cost-effective by the Brief Educational workshops in Secondary Schools Trial (BESST). DISCOVER comprises pre-workshop 1:1 meeting, a group workshop, and 1:1 follow-up phone call. A qualitative process evaluation investigated intervention delivery and outcome generation within BESST.

As adolescents navigate the complex transition of puberty, understanding factors that can buffer against psychopathology becomes increasingly important. This study introduces pubertal self-efficacy, defined as adolescents' confidence in their ability to manage the challenges associated with puberty, as a novel protective factor for youth. We hypothesized that higher levels of pubertal self-efficacy would mitigate associations of both general and puberty-specific stress with depressive and anxiety symptoms.

Social relationships, specifically unsatisfying social relationships, play a critical role in the development of problematic mobile phone use (PMPU). However, few studies, particularly those employing longitudinal mediation models, have explored the underlying mechanisms. Drawing on the Interaction of Person-Affect-Cognition-Execution model, the cognitive-behavioral model, and the compensatory internet use theory, this study examines whether loneliness and maladaptive cognitions mediate the relationship between relatedness need dissatisfaction and PMPU.

Previous research has investigated the impact of peers on adolescents' decision-making across various domains. However, adolescents are not just passive receivers of information; they actively seek advice from peers. Yet, there is limited understanding of whom adolescents turn to within their peer networks to guide their decisions.

Prior research has demonstrated that social ostracism not only leads to social withdrawal but also impairs sleep. Good sleep is essential for cognitive function, mental health, and adolescent development. The study utilizes a longitudinal design to explore the bidirectional relationship between social ostracism and sleep quality among junior high school students.

Maladaptive cognitive emotion regulation strategies (MCERSs) have been generally conceptualized as causes of adolescent internalizing problems. This conceptualization was dominant in both theoretical frameworks and practical applications. However, it may not fully capture the complex relationships between MCERSs and internalizing problems. In this study, we challenge this assumption and propose an alternative perspective: MCERSs are not just causes of internalizing problems but also emerge as outcomes.

We examined parenting practices and attitudes of parental warmth, harsh parenting, consistency of discipline, and parent self-efficacy in childhood as moderators of the associations between parental drinking in childhood and alcohol use from ages 12 to 19. We also explored whether these moderation effects would differ for boys and girls.

This study examined the role of loneliness (social and emotional) and ostracism in adolescents' psychological well-being (positive mental health and psychological symptoms) and substance use. Perceived teacher and family support and grade level were examined as moderators in these associations.

Given the crucial role peer relationships play for the well-being of adolescents, it is important to understand the factors that support adolescents' ability to form positive relationships with peers. Within early childhood, both children's mentalizing and parents' ability to reason about their children's mental states relate to positive social outcomes; however, markedly less is known about such associations during adolescence. Addressing this gap, the present work examines parental reflective functioning in relation to adolescents' peer relationships, while also exploring whether adolescents' own mentalizing skills may account for such associations.