"Psychometric properties and structural validity of traditional Chinese" by Pin Yuan Chen, Tsui Mien Kuo et al.
Background: Sleep assessment in the intensive care unit (ICU) is difficult and often unreliable. The most commonly used questionnaire for assessing ICU sleep, the Richards–Campbell Sleep Scale (RCSQ), has not been tested for reliability and construct validity in the Mandarin–Taiwanese speaking population. Objective: The objective of this study was to test the construct validity and criterion validity of the traditional Chinese version of RCSQ (TC-RCSQ) in critically ill patients without physical restraint. Methods: We adopted a cross-sectional study design. Adults aged 20 years and above w...