Objective: Therapeutic factors are one of the important mechanisms providing change in group therapy. Assessing therapeutic factors give information regarding group processes and helps group therapists conduct the group more effectively. In this study, we aimed to examine the validity and reliability of the Turkish version of the Therapeutic Factors Inventory—Short Form (TFI-SF) to assess therapeutic factors in group settings.
Methods: A total of 128 group members who completed cognitive behavioral group therapy (CBT) for different problems and psychodrama groups participated in this study. IFE-SF and the Group Climate Questionnaire (GCQ) were applied. Construct validity, convergent validity, group differences methods for validity analysis, Cronbach’s alpha coefficient, and item-total correlation analysis for reliability analysis were used.
Results: According to the results of confirmatory factor analysis for construct validity; when 1 item was deleted, the 4-factor model had acceptable goodness of fit values. For convergent validity, there was a significant positive correlation between the subscales of IFE-SF and the subscale of GCQ. The results of multivariate analysis of variance showed that the CBT and psychodrama groups did not differ in terms of TFI-19 subscales. Cronbach’s alpha reliability coefficients were found to be between 0.57 and 0.87, and item-total correlation values were in the acceptable range.
Conclusion: The results of this study showed that the Turkish version of İFE-SF is a valid and reliable tool to assess therapeutic factors in a group therapy setting.
Cite this article as: Yalçın M, Arkar H. Turkish adaptation of therapeutic factors inventory—short form (TFI-SF) in group therapy: A validity and reliability study. Neuropsychiatr Invest. 2021;59(2):53-60.