This article draws on the Millennium Cohort Study (MCS) to examine parent ratings of social, emotional and behavioural difficulties and prosocial behaviour in pre- and mid-adolescents. A series of mixed-design ANOVAs yielded interesting results. Parent ratings of emotional difficulties in girls increased as they moved from pre- to mid-adolescence…

This study used item response theory (IRT) to derive sets of maximally efficient items (SMI) for a brief behavior rating scale (BBRS) from a common universal screening tool (i.e., the Social, Academic, and Emotional Behavior Risk Screener--Student Rating Scale [mySAEBRS]). We also evaluated the change sensitivity of these items for potential use…