Objective: This study investigated whether extreme cut-scores on the Barkley Adult Attention-Deficit/Hyperactivity Disorder (ADHD) Rating Scale-Fourth Edition (BAARS-IV) self-report scales could serve as symptom overreporting indicators in adult ADHD evaluations. Method: The sample consisted of 162 adults who underwent a neuropsychological evaluation for ADHD. Patients were classified into valid (n = 115) and invalid (n = 47) groups based on multiple criterion symptom validity tests. Results:…
