Perseveration moderates the relationship between perfectionism and binge eating: a multi-method daily diary study.

Theory and evidence suggest perfectionism is associated with binge eating. Few studies test conditions under which this association is particularly strong. To better understand the perfectionism-binge eating connection, the present study introduced perseveration as a moderator. A sample of 317 undergraduates completed a computerized Stroop task, baseline self-report measures of perfectionism (i.e., doubts about actions) and binge eating, and self-report daily diary measures of binge eating. Perseveration was defined in terms of reaction time difficulties when consecutive trials required a change of response relative to consecutive trials not requiring a change. Results indicated high levels of doubts about actions were especially related to high levels of binge eating for participants high (versus low) in perseveration. Findings suggest perfectionistic, nagging self-doubts, combined with a tendency to get stuck on thoughts or behaviors, may contribute to increased binge eating-a habitual behavior linked with difficulties in self-regulation.