This study examined the psychometric properties of the school engagement measure (SEM) in Singapore. The sample consisted of 1,027 students from a multi-ethnic Singapore adolescent community. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) confirmed that the two-factor solution, namely, (a) Emotional and (b) Cognitive…

The aim of this study was to compare the way in which 216 young handball players ("Mage" = 12.79, SD = 2.20) of different ages (nine- to 10-years-old, 11- to 12-years-old, 13- to 14-years-old, and 15- to 16-years-old) combined and integrated five different information cues (the consequences of the aggression, the current score, the time…

Victimization based on actual or perceived sexual orientation or gender expression (SOGE) carries significant consequences. In this study, we examined how SOGE-based victimization and contextual factors predicted truancy among 886 Chilean students (M[subscript age] = 16.00, SD = 1.30) in four high schools. Victimization predicted truancy…

This study examines the effects of peer victimization by verbal, physical, and relational bullying on Korean adolescents' self-worth, disconnect to peers, school engagement, and academic achievement. A two-year longitudinal survey on 3,266 sixth-graders attending school in Seoul, Korea was used. Multivariate regression results controlling for…

The purpose of the present study is to examine bullying perpetration and social intelligence (SI), which is a sociocognitive characteristic that has been proposed as a possible regulator of traditional and cyberbullying. We compared SI for perpetrators and nonperpetrators of traditional bullying and/or cyberbullying and examined longitudinal…

The objective of this study is to reveal whether the peer relationships of preschool children who are determined to be obese, based on their body mass index (BMI), differentiate or not. The study was conducted within the frame of a relational survey model. A total of 114 five- to six-year-old children (57 normal-weight children and 57 obese…

This study examined the joint and relative contribution of sexual activities, alcohol consumption, smoking and aggression to the prediction of health risk of students in rural communities in Ogun State. Descriptive research design of correlational type was adopted. Multi-stage sampling Technique was used to draw 300 respondents from an…

Identity formation is one of the key developmental tasks in adolescence. According to Erikson (1968) experiencing identity uncertainty is normative in adolescence. However, empirical studies investigating identity uncertainty on a daily basis are lacking. Hence, studying individual differences in daily certainty (i.e., identity commitment levels)…

Rejection sensitivity (RS) instigates conflict and prompts maladaptive conflict responses within romantic relationships. We tested whether RS had similar effects within friendships (N = 262, X[subscript age] = 11.7) by investigating whether (a) RS was associated with more frequent conflict, (b) two RS forms prompted different conflict responses,…

Objective: Although oppositional defiant disorder (ODD) is usually considered the mildest of the disruptive behavior disorders, it is a key factor in predicting young adult anxiety and depression and is distinguishable from normal childhood behavior. In an effort to understand possible subsets of oppositional defiant behavior (ODB) that may…

Multivariate genetic studies have revealed genetic correlations between antisocial behavior (ASB) and substance use (SU). However, ASB is heterogeneous, and it remains unclear whether all forms are similarly related to SU. The present study examines links between cannabis use, alcohol consumption, and aggressive and delinquent forms of ASB using a…

The maladaptive personality and neuropsychological features of highly relationally aggressive females were examined in a group of 30 grade 6, 7, and 8 girls and group-matched controls. Employing a multistage cluster sampling procedure, a group of highly, yet almost exclusively, relationally aggressive females were identified and matched on a…

We investigated how adolescents (sixth-graders, N = 357) morally evaluated hypothetical bullying and defending protagonists and whether these evaluations related to behavior in bullying as nominated by peers. Exploratory factor analysis (EFA) resulted in four factors for the evaluation of the hypothetical bullies: "Evil soul,"…

The Adapted Self-Report Delinquency Scale (ASDS) was administered to 328 adolescents (174 males and 154 females) from eight high schools in Perth, Western Australia. The ages of the sample ranged from 13 to 17 years. Males reported a greater percentage level of involvement than females in 36 of 40 individual delinquent behaviours comprising the…

Antisocial behavior and school aggression in youth has been linked with affective, interpersonal, self-attributional, and behavioral characteristics; these traits have often been associated with psychopathic behaviors among adults. Psychopathic traits were examined in nonclinically-referred youth exhibiting antisocial and aggressive behavior.…