An emerging body of research documents a relationship between sleep quantity and delinquency during adolescence. Absent from this line of research, however, is an evaluation of whether the associations between sleep duration and different forms of delinquency vary across periods of adolescence and sex. The current study aimed to address this gap…

Cyber delinquency in adolescence is a particular area of concern for psychologists owing to its association with several mental health issues and its potential link with offline delinquency. This longitudinal study examined the stability of changes and directions of influence in adolescents' cyber delinquency, aggression, and offline delinquency…

Although studies have identified risk factors for adolescent handgun carrying, previous research on risk factors for carrying a handgun to school specifically is sparse. This study examines self-report data from 122,840 8th, 10th, and 12th grade students from 426 schools across Arizona, from three survey administrations (2014, 2016, and 2018). In…

This study examined the effects of out-of-school suspension on high school students. Its purpose was to determine if exclusionary discipline practices led to negative consequences such as poor academic achievement and juvenile delinquency. The study also hoped to generate new insight into current disciplinary practices in order to yield a better…

While many adolescents and young adults experiment with substances (e.g., alcohol, cigarette smoking, marijuana), recent research suggests that rural youth and young adults may be more at risk for substance use than their urban counterparts. This study was designed to examine the longitudinal relationships between rural adolescents' prosocial…

The present study examined physical dating aggression in different adolescent relationships and assessed linear, threshold, and moderator risk models for recurrent aggressive relationships. The 621 participants (59% girls, 41% boys) were drawn from a 1-year longitudinal survey of Canadian high school youths ranging from Grade 9 through Grade 12.…

The aim of this study has been to examine the effect of retrospective report of political violence during the first Intifada (1987-1993) on psychological adjustment of 1185 Palestinian adolescents (10th to 12th graders) seven years after the first Intifada had ended. Analysis of the inter-relations was conducted between self-reported measures of…

The relationship among three personal fables ("omnipotence," "invulnerability," "personal uniqueness"), narcissism, and mental health variables was assessed in a large, cross-sectional sample of adolescents drawn from Grades 6 (n = 94), 8 (n = 223), 10 (n = 142), and 12 (n = 102). Participants responded to the New Personal Fable Scale, the…