Times of day certain behaviours are exhibited by ADHD children compared to children without ADHD. Baseline: all qualified respondents (ADHD survey, n = 910; normative population survey, n = 995). *p < 0.05, non-medicated children with ADHD versus children without ADHD. †p < 0.05, children without ADHD versus non-medicated children with ADHD. ADHD = attention-deficit/hyperactivity disorder.