The Validity and Reliability of the Post-Intensive Care Syndrome Questionnaire Turkish Version

To conduct a Turkish validity and reliability study of the Post-Intensive Care Syndrome Questionnaire Scale.

In this methodological study, the sample included 149 patients hospitalized in the intensive care unit who were discharged at least 4 weeks and 1 year ago. In the Turkish adaptation of the questionnaire, confirmatory and exploratory factor analyses were conducted to assess language, content, and construct validity. A test-retest was used for intraclass correlation analysis, and Cronbach's alpha was used for internal consistency analysis in the reliability analyses.

The survey's language validity was assessed by expert linguists. The Content Validity Index was calculated as 0.96. The item-total score correlation coefficients ranged between r = .381 and .686. Spearman's Rho coefficients indicated significant correlations (r = .981; p < .001). The root mean square error of approximation (0.097), Adjusted Goodness of Fit Index (0.75), Goodness of Fit Index (0.81), and Comparative Fit Index (0.94) showed a good fit. The Cronbach alpha was 0.90.

The Turkish version of Post-Intensive Care Syndrome Questionnaire, with 18 items, was valid and reliable. Assessing post-intensive care syndrome in intensive care patients after discharge is suggested in practice. Cite this article as: Kebapçı, A., & Yalçın, B. (2026). The validity and reliability of the post-intensive care syndrome questionnaire Turkish version. Florence Nightingale Journal of Nursing, 34, 0309, doi: 10.5152/FNJN.2026.25309.