Effects of a Procrastination Intervention for Japanese University Students With Attention-Deficit/Hyperactivity Disorder Tendencies: An Interrupted Time Series Analysis

Abstract

University students, especially those with attention-deficit/hyperactivity disorder (ADHD), experience distress due to procrastination. However, the existing treatment for adult ADHD does not adequately address procrastination. A brief procrastination-focused cognitive behavioral therapy program was developed for the current study, and its effects on procrastination, depression, and life satisfaction were assessed. Using a single-case AB design, procrastination behaviors and mood during the baseline and intervention periods were recorded. Data from 24 students with ADHD symptoms (mean age = 20.42 years, SD = 1.50) were analyzed using interrupted time series and counterfactual analyses. The effects of the program on the depressive symptoms and life satisfaction were also examined. The intervention changed the trajectory of the students’ procrastination behaviors, significantly reducing them compared with baseline. They also reported improved life satisfaction following the intervention. This novel intervention appears effective in reducing procrastination among university students with ADHD symptoms.