Executive functioning in adult Attention-Deficit Hyperactivity Disorder

The present study examined the executive abilities of 35 adults diagnosed with Attention-Deficit Hyperactivily Disorder (ADHD) and 32 adults without the disorder (n = 67) who were equivalent in age, gender, years of education, and Full Scale IQ. The ADHD group performed significantly worse on Stroop Color-Word (? 2 = .18) and Interference (? 2 = .08), as well as time to complete Trails B (? 2 = .08) than the controls (all ps .30; ? 2 = .00–.01). The distributions of WCST variables showed severe skew associated with high-functioning performance on the test among both groups. The pattern of results suggests the presence of specific deficits in response inhibition, with inta...