Mistake Rumination Scale: Psychometric Properties for the Turkish Version

Abstract

The Mistake Rumination Scale (MRS) was developed to evaluate the inclination to engage in mistake rumination (MR), a reaction to perceived mistakes in the form of intense, repetitive negative thoughts. The present study aimed to investigate the psychometric qualities of the Turkish version of the MRS in 2 studies. Data were collected from 214 participants (118 females) between the ages of 18 and 56 (M = 33.45, SD = 11.82) through measures of MR, repetitive negative thinking, per-fectionism, procrastination, depression, and anxiety. The findings confirmed the original factor structure and indicated adequate reliability, convergent, and incremental validity. In the second study, the criterion-related validity of the MRS was tested using an experimental design. Participants (127 individuals aged between 18 and 28) were asked to imagine committing a series of mistakes or a regular event. Results provided support for the criterion-related validity of the MRS. In conclusion, MRS can be utilized to assess MR in Turkish individuals. © 2025, Association for Clinical Psychology Research. All rights reserved.