Ali Pakizeh

The aim of the present study was to investigate the effect of correcting perfectionistic cognitive bias on distress tolerance and procrastination of perfectionist students. The current study, which was a semi-experimental study with a pre-test-post-test design with a control group. The statistical population included university students of Dashtestan city who were studying in the academic year of 2021-2022. The researchers invited the students to complete the online questionnaire of perfectionism by informing through virtual space. 68 people out of 328 students who completed Frost's multidimensional perfectionism scale (1990) were identified as perfectionist students, and 40 people (22 girls and 18 boys) were randomly selected and using the method They were randomly assigned in two experimental and control groups. The students of the experimental group participated in the weekly meetings to correct perfectionistic cognitive bias in person during 8 weeks between November and December of 1400. In this research, Multidimensional Perfectionism Scale (MPS), Tuckman Procrastination Questionnaire (TPS) and Distress Tolerance Scale (DTS) were used. Data were analyzed by univariate, multivariate and regression analysis using SPSS-24 software. The findings showed that correcting perfectionistic cognitive biases increases students' distress tolerance (p<0.01), but no significant change was observed in students' procrastination (p<0.85). Considering the characteristics of perfectionism and also the psychological damages caused by it in students, the implementation of interventions aimed at reducing perfectionist biases can play an effective role in preventing these damages.