Non-Linear, Domain- and Rater-Specific Effects of Anxiety on Impairments in Pediatric ADHD

Anxiety symptoms and outcomes among children with ADHD were examined. Working memory and academic achievement showed significant, quadratic relations to self-rated physiological anxiety wherein high and low levels of anxiety were associated with worse performance, consistent with the Yerkes-Dodson Law. In contrast, behavioral outcomes showed linear relations to parent-rated anxiety.