“…In this study, we use an operant procedure that allows more direct measurement of contingency effects on behavior (Bull, Tippett, & Addis, ). Earlier studies have used single schedules demonstrating the effectiveness of mild punishment in reducing off‐task or maintaining on‐task behavior in children with ADHD (Rapport, Murphy, & Bailey, ; Rosén, O'Leary, Joyce, Conway, & Pfiffner, ; Worland, ). The current study uses concurrent schedules to assess the extent to which punishment influences response allocation in children with and without ADHD.…”