An up-and-coming concept that is gaining traction in the study of psychological states is psychological flexibility. This term refers to the individual’s ability to be fully present in real time, think with openness, and act in a way that promotes his or her life in ways important to the individual. To the best of our knowledge, no previous study in Israel has utilized Psy-Flex, a measurement tool for assessing psychological flexibility, and a Hebrew version of the tool has not been validated. This study aims to validate Psy-Flex-Heb by applying established validation protocols and leveraging insights from prior research on psychological flexibility measurements. The investigation delves into the associations between Psy-Flex-Heb and key psychological variables such as well-being, sense of meaning in life, and mindfulness. Additionally, the study rigorously examines and confirms the one-dimensional factor structure of Psy-Flex-Heb.

In this study, we conducted a psychometric evaluation by translating Psy-Flex into Hebrew (Psy-Flex-Heb) and examining its internal consistency and psychometric properties in 103 participants from the general population.

The reliability of Psy-Flex-Heb scores based on Cronbach's alpha was 0.91. Confirmatory Factor Analysis showed that Psy-Flex-Heb fit a one-factor model. We found significant correlations between Psy-Flex-Heb, psychological flexibility (measured by.

Acceptance and Action Questionnaire – version 2 [AAQ-II]), well-being, meaning in life, and mindfulness.

The results strengthen the one-dimensional construct of psychological flexibility and show Psy-Flex-Heb is a reliable measure that can be useful in both research and practice.