Objective: To examine the relationship between ADHD and regret propensity; To investigate two
possible mediating variables-perfectionism and delay of gratification--between ADHD and regret. Methods:
Totally 237 college students were recruited as participants and were asked to finish Chinese Conner’s Adult
ADHD Rating Scales, Regret Scale, Delay of Gratification Questionnaire, and two perfectionism scales
(Maximization Scale and Imperfection Anxiety Questionnaire). Results: ADHD propensity is moderately
correlated with regret (r=0.479, p<0.01). ADHD propensity is also moderately correlated with perfectionism
(r=0.462, p<0.01). Perfectionism is associated with regret (r=0.556, p<0.01). Perfectionism fully mediates the
effect of ADHD propensity on regret. But delay of gratification does not work as a mediatory factor between
ADHD and regret. Conclusion: This study suggests that the ADHD propensity increases the occurrence of
perfectionism, and individuals with perfectionism are vulnerable to regret.