Turkish Adaptation of the Multidimensional Psychological Flexibility Inventory

Authors : Zeynep Cansu Armağan Küçükseymen, Ebru Şalcıoğlu

Pages : 393-414

Doi:10.26650/SP2022-1170143

View : 7 | Download : 13

Publication Date : 2024-12-16

Article Type : Research Paper

Abstract :Psychological flexibility and inflexibility are the foundational processes of Acceptance and Commitment Therapy (ACT). According to the Hexaflex model, these processes are composed of twelve dimensions; six sub-processes contribute to psychological flexibility and six sub-processes contribute to psychological inflexibility. The Multidimensional Psychological Flexibility Inventory (MPFI; Rolffs et al., 2016) includes items that assess all these sub-processes. The aim of the current study was to adapt the MPFI into Turkish and explore the psychometric properties of the Turkish MPFI. The sample (N = 603, 𝑀𝑎𝑔𝑒= 39, SD = 12.3) of the study was recruited online through convenience sampling. The psychometric properties of the Turkish MPFI were examined by assessing internal consistency for reliability, performing confirmatory factor analysis regarding validity, testing measurement invariance, examining its relationship with another tool measuring the same construct, and analyzing its effects on other theoretically related constructs such as depression, anxiety, and stress. The results of the confirmatory factor analysis supported the original higher order factor structure in the Turkish version with 12 first-order factors, half and half distributed into second-order global flexibility and inflexibility factors. The internal consistencies for the global flexibility scale (𝛼 = .96) and the global inflexibility scale (𝛼 = .93) were very high. The scale demonstrated strong correlations with psychological inflexibility, supporting its convergent validity. Global flexibility predicted lower levels of depression, anxiety, and stress, whereas global inflexibility predicted higher levels, supporting the construct validity. Additionally, the scale showed measurement invariance across gender and mental health status. Overall, these findings provide evidence for the reliability and validity of the scores obtained from the Turkish MPFI.
Keywords : Psikolojik esneklik, psikolojik katılık, Kabul ve Kararlılık Terapisi, Çok Boyutlu Psikolojik Esneklik Envanteri