BACKGROUND Screen entertainment for young children has been associated with several aspects of psychosocial adjustment. Most research is from North America and focuses on television. Few longitudinal studies have compared the effects of TV and electronic games, or have investigated gender differences. PURPOSE To explore how time watching TV and playing electronic games at age 5 years each pre...

Comorbid conduct problems (CPs) and depression are observed far more often than expected by chance, which is perplexing given minimal symptom overlap. In this study, relations between parental psychopathology and children's diagnostic status were evaluated to test competing theories of comorbidity. Participants included 180 families with an 8-12-year-old child diagnosed with CPs, depression, bo...

Although there is considerable evidence that culture-related factors are associated with aggressive behavior, their effect on the development of conduct problems (CP) has been insufficiently studied. This study focused on adherence to honor code (AHC), defined by the endorsement of honor culture attitudes at the identity narrative level of personality assessment, as a mediator in the prediction...

The prevalence of direct and relational bullying and their differential relationship to behaviour problems in young primary school children was investigated. Individual interviews were conducted with 1982 children aged 6 9 years (mean age 7.6 years) and 1639 parents completed the Strength and Difficulties Questionnaire regarding behaviour problems of their children. Of the 1639 children with bo...

BACKGROUND A callous and unemotional disposition is an indicator of early-onset antisocial behaviour. AIMS To investigate the extent to which genetic influences contribute to the overlap between callous-unemotional traits and conduct problems in a large population sample of 7-year-old twins. METHOD Teachers provided ratings of callous-unemotional traits and conduct problems for 3434 twin pa...

BACKGROUND Individual differences in conduct problems arise in part from proneness to anger/frustration and poor self-regulation of behavior. However, the genetic and environmental etiology of these connections is not known. METHOD Using a twin design, we examined genetic and environmental covariation underlying the well-documented correlations between anger/frustration, poor attention regula...