Psychometric Qualities of Turkish Version of Perseverative Thinking Questionnaire (PTQ)

Repetitive negative thinking (RNT) is an umbrella term that refers to an individual’s tendency to have negative thoughts in an uncontrollable and repetitive manner regardless of their content and temporal focus. RNT is suggested to be a transdiagnostic factor that may be associated with vulnerability for many different psychological disorders. The aim of the present study is to examine the psychometric qualities of Perseverative Thinking Questionnaire (PTQ), which is a scale that assesses non-disorder-specific form of RNT. The data was gathered from 446 Turkish individuals between the ages of 18 and 58 years through a web based data collection method. In addition to PTQ, the participants also completed questionnaires that measure worry, rumination, anxiety, depression, and thought suppression. Two models were tested, and CFA revealed a better fit for the 3-factor model. Results indicated that the scale has satisfactory levels of internal consistency, split-half reliability, and test–retest reliability. Further, correlation analyses showed moderate correlations with measures of worry, rumination, anxiety, and depression; which is indicative of satisfactory levels of both convergent and concurrent validity. In sum, Turkish version of PTQ is a psychometrically sound measure that researchers can utilize in research focusing on transdiagnostic processes.