Children with attention-deficit/hyperactivity disorder (ADHD) typically experience social interaction problems. Neurocognitive functions, such as working memory and inhibitory control have been included in several studies of social problems in ADHD, with inconsistent findings emerging. Intraindividual reaction time variability (RTV) has been understudied as a factor explaining social problems in children with ADHD, despite being one of the most consistent cognitive impairments in the disorder….