Processess of Change Questionnaire Smoking Version: Psychometric Evidence of Validity and Reliability in Turkish Culture

The aim of this study is to adapt the Processes of Change Questionnaire Smoking Version: Short Form into Turkish. The study comprised 1070 adults from three different samples. The results of the pilot study showed that the translated version was understood well by the Turkish sample. An exploratory factor analysis revealed that the 20-item scale had a 10-factor structure and explained 64.33% of the variance. The confirmatory factor analysis results indicate that the 10-factor model and the two-factor model fit the data well with the Turkish sample. In the reliability analysis, the alpha and omega consistency coefficients of all dimensions ranged from 0.54 to 0.90, besides the test–retest correlation coefficients ranged from 0.34 to 0.75. These results indicate that the reliability of the scale is acceptable. The current study provides evidence that the Turkish version of the PCQ-SV is a reliable and valid instrument to determine smoking behaviors among adult smokers.