学前期共发外向行为不同发展模式儿童的前青春期心理社会适应问题

The co-occurrence of externalizing behaviors (EBs) in school-aged children is associated with long-term homotypic (similar) and heterotypic (diverse) psychosocial difficulties. It is unknown whether this developmental process begins with the first manifestations of EBs in the early preschool years. This population-based cohort study examined psychosocial maladjustment at ages 10-12-including externalizing problems, addictive behaviors, internalizing problems, and socialization difficulties-among children who followed distinct patterns of single or co-occurring EBs across the preschool years. E