Correlates for academic performance and school functioning among youths with and without persistent attention-deficit/hyperactivity disorder

► We examined school functions in persistent ADHD, non-persistent ADHD, and non-ADHD. ► We found a gradient relationship of school dysfunction across the three groups. ► Inattention symptoms predicted poorer adjustment in all domains of school functions. ► Both ADHD groups have increasing degree of school dysfunction with age.