The Mistake Rumination Scale: Development, Validation, and Utility of a Measure of Cognitive Perfectionism

In the current article, we describe the development and validation of the Mistake Rumination Scale as a supplement to existing trait and cognitive measures of perfectionism. The Mistake Rumination Scale is a seven-item inventory that taps the tendency to ruminate about a past personal mistake. Psychometric analyses confirmed that the Mistake Rumination Scale consists of one factor assessed with high internal consistency. Analyses established...