0344 Convergent and Divergent Validity of a Sleep Health Literacy Measure

Abstract Introduction The Sleep Health Literacy (SHL) scale, grounded in the integrated model of health literacy, consists of two subscales: “Sleep Health Communication” and “Sleep Health Knowledge.” This study aims to explore the validity of the SHL scale by examining its relationships with scales measuring health literacy, sleep, and non-related constructs. Further, this study sought to conduct confirmatory factor analysis to evaluate the reliability of the SHL measure. Methods 253 students were recruited from the undergraduate SONA psychology pool (M age = 20.3, 53% white, 75% women). Participants completed the Dysfunctional Beliefs about Sleep Scale, Sleep Practices and Attitudes Questionnaire (SPAQ), Sleep Beliefs Scale (SBS), Sleep Hygiene Index (SHI), Insomnia Severity Index (ISI), All Aspects of Health Literacy Scale (AAHL), Alcohol Use Disorder Identification Test (AUDIT), and General Anxiety Disorder 7 Item (GAD-7) Scale as well as the Sleep Health Literacy (SHL) Scale. Results The SHL part 1 was significantly associated with part 2 scores (r = .25, p .00), the sleep hygiene index (r = .21, p .002), sleep beliefs scale total correct (r = .28, p .00), AAHL total score (r = -.27, p .00), AAHL communicative subscale (r = -.39, p .00), functional (r = .15, p = .04) and AAHL critical subscale (r = -.25, p .00). Scores on part 2 of the SHL were correlated with items correct on the SBS (r = .53, p .00) and AAHL functional subscale (r = .15, p = .04). Confirmatory factor analysis (CFA) was performed on two factors and showed a model with reasonable fit (χ² = 144.986, df = 43, p 0.001, RMSEA = 0.103, CFI = 0.833, GFI = 0.891, AGFI = 0.832). Conclusion This study examined the Sleep Health Literacy (SHL) Scale, a tool designed to assess an individual’s ability to communicate and comprehend sleep-related concepts. The scale demonstrated significant associations with related constructs, including sleep hygiene, sleep beliefs, and health literacy. These findings contribute to the SHL scale’s potential for assessing sleep health literacy and offer useful insights into areas of refinement. Support (if any)