Psychometric Properties and Factor Structure of Persian Version of Regret-Based Decision-Making Style Scale

Considering the need to provide valid tools and test their usability, present study aimed to determine psychometric properties and factor structure of Persian version of regret-based decision-making style scale. The current research is an analytical cross-sectional study. The statistical population consisted of students from Kermanshah universities. From this population 400 people were selected through available sampling and they were assessed employing short version of the UPPS-P Impulsive Behavior Scale, Depression, Anxiety and Stress Scale, and regret-based decision-making style Questionnaire. Data were analyzed based on Cronbach's alpha test, Intraclass and Pearson correlation tests, and confirmatory factor analysis using SPSS and Mplus softwares. The findings showed thatinternal consistency reliability of the questionnaire was 0.85, its split-half reliability was 0.79, and its test-retest reliability was 0.80 for a three-week period. The results of confirmatory factor analysis confirmed the one-dimensional factorial structure of the questionnaire (RMSEA=0.10, CFI=0.91, TLI =0.90). Furthermore, significant correlation between the scores of this questionnaire and impulsivity and emotional distress dimensions indicated the criterion validity of regret-based decision-making style scale.  It could be said thatthe Persian version of regret-based decision-making style scale has acceptable validity and reliability and it can be an appropriate tool for employing in cognitive psychology and decision making styles studies