PSYCHOLOGICAL FLEXIBILITY MEASUREMENT SCALE (PSY-FLEX): VALIDATION AND PSYCHOMETRIC EVALUATION
DOI:
https://doi.org/10.32782/psy-visnyk/2025.4.4Keywords:
psychological flexibility, Acceptance and Commitment Therapy (ACT), Psy-Flex, measure adaptation, psychometric properties, validity, reliability, test normsAbstract
Psychological flexibility is one of the key concepts in contemporary psychology, reflecting an individual’s capacity to adapt to change, cope effectively with difficulties, and maintain psychological well-being under conditions of uncertainty.Research on psychological flexibility becomes particularly salient in the context of the current social, economic, and war- related challenges faced by Ukrainian society. The aim of this study was to carry out a Ukrainian-language adaptation of the PSY-FLEX psychological flexibility measure (E.T. Gloster, W.-J. Block, E. Klotsche, J. Villanueva et al.) and to examine its psychometric properties in a Ukrainian sample. The adaptation procedure included forward and back translation, linguistic harmonization, and cultural adaptation of the items. The empirical validation was conducted in two stages. At the first stage, 198 respondents were surveyed; their data were used to analyze item discrimination, internal consistency, factor structure, and the validity of the scale. The second stage involved 74 respondents from the same sample, who completed the questionnaire again six months later. This made it possible to assess test–retest reliability and the temporal stability of the scores. The final one-factor EFA model of the Ukrainian version of Psy-Flex with six items accounted for 52.1% of the variance, confirming the predominance of a single latent factor of psychological flexibility. The CFA model demonstrated acceptable fit indices (CFI=0.964; TLI=0.940; SRMR=0.037; RMSEA=0.068), while the reliability indices (α=0.759; ω=0.762) and the test–retest correlation (r=0.881; p<0.001) indicated the reliability and temporal stability of the instrument. Convergent, divergent and discriminant validity were supported by significant associations with indicators of psychological flexibility and inflexibility as measured by the MPFI and AAQ-II. The results obtained on the sample of 198 respondents also made it possible to justify the approximate normality of score distribution and to construct parametric test norms for the practical use of the Ukrainian version of Psy-Flex.
References
Широка А.О., Миколайчук М.І. Адаптація україномовної версії опитувальника прийняття та дії (AAQ-II) на нормативній та субклінічній групах досліджуваних. Науковий вісник Херсонського державного університету. Серія «Психологічні науки». 2021. № 3. С. 101–112. URL: https://doi.org/10.32999/ksu2312-3206/2021-3-14
Лавриненко Д. Г. Багатофакторний опитувальник для вимірювання психологічної гнучкості (MPFI): адаптація та психометрична оцінка. (Препринт).
Федоришин Г.М., Федоришин Н.І., Слюсарчук О.В. Вплив війни на психічне здоров’я молоді: роль резилієнсу, психологічної гнучкості та інтервенцій на засадах ACT. Amazona Investiga. 2024;13(1):65–82.
Bond F.W., Hayes S.C., Baer R.A., Carpenter K.M., Guenole N., Orcutt H.K., Waltz T., Zettle R.D. Acceptance and Action Questionnaire-II: Development and initial validation of a revised measure of psychological inflexibility and experiential avoidance. Behavior Therapy. 2011;42(4):676–688. DOI: 10.1016/j.beth.2011.03.007.
Gloster A.T., Block V.J., Klotsche J., Villanueva J., & ін. Psy-Flex: A contextually sensitive measure of psychological flexibility. Journal of Contextual Behavioral Science. 2021;20:1–11. DOI: 10.1016/j.jcbs.2020.11.001.
Hayes S.C., Luoma J.B., Bond F.W., Masuda A., Lillis J. Acceptance and Commitment Therapy: Model, processes and outcomes. Behaviour Research and Therapy. 2006;44(1):1–25. DOI: 10.1016/j.brat.2005.06.006.
Hayes S.C., Strosahl K.D., Wilson K.G. Acceptance and Commitment Therapy: The Process and Practice of Mindful Change. 2nd ed. New York: Guilford Press; 2012.
Kashdan T.B., Rottenberg J. Psychological flexibility as a fundamental aspect of health. Clinical Psychology Review. 2010;30(7):865–878. DOI: 10.1016/j.cpr.2010.03.001.
Rolffs J. L., Rogge R. D., Wilson K. G. Disentangling Components of Flexibility via the Hexaflex Model: Development and Validation of the Multidimensional Psychological Flexibility Inventory (MPFI). Assessment. 2016. Vol. 25, no. 4. P. 458–482. URL: https://doi.org/10.1177/1073191116645905
Defining and measuring “psychological flexibility”: A narrative scoping review of diverse flexibility and rigidity constructs and perspectives / K. M. Cherry et al. Clinical Psychology Review. 2021. Vol. 84. P. 101973. URL: https://doi.org/10.1016/j.cpr.2021.101973
