Inattention, hyperactivity/impulsivity, and academic competence: Findings from three cohorts.

Background: Attention-deficit hyperactivity disorder (ADHD) is a risk for learning. Because ADHD commonly includes behaviours of inattention and behaviours of hyperactivity/impulsivity, how the two types of behaviours independently affect children's academic competence remains poorly understood.

Aims: To investigate the impact of behaviours of inattention and behaviours of hyperactivity/impulsivity on Chinese students' academic competence.