| Abstract Attention‐Deficit/Hyperactivity Disorder (ADHD) is related to suboptimal decision making in experimental tasks and to real‐life risk‐taking behavior (RTB) such as substance abuse and unsafe traffic conduct. In this preregistered study, we tested whether these associations are mediated by need for cognition—the extent to which one tends towards, and enjoys, analytical thought. In a large sample of young adults (N = 463, Mage = 19.7 years), we tested whether need for cognition mediated… |