"As a baseline, anyone with above average willpower has a busy enough life not to have time to participate in psychological surveys." I wonder if that's true.

"As a baseline, anyone with above average willpower has a busy enough life not to have time to participate in psychological surveys." I wonder if that's true. Aren't a lot of psych experiments done with college students? I think I know a lot of people with above average willpower that did psych experiments in college because they were kind of fun and paid pretty well.