Psychometric properties of the Turkish version of the Anxiety and Preoccupation about Sleep Questionnaire in clinical and non-clinical samples

Abstract

Objectives The aim of the study was to investigate the psychometric properties of the Turkish version of Anxiety and preoccupation about sleep questionnaire (APSQ) in clinical and non-clinical samples. Material and Methods Two samples (141 university students and 42 patients with major depressive disorders) completed Turkish APSQ, the Pittsburgh sleep quality index (PSQI), the insomnia severity index (ISI) and the sociodemographic data form. Content validity analysis was performed with the Davis technique after the translation process of the original scale. Explanatory factor analysis and principal component analysis were performed to determine the scales construct validity, and internal consistency and temporal stability analyses were conducted to evaluate its reliability. The PSQI and the insomnia severity index (ISI) were used to assess criterion- related validity. In addition, we divided all the participants into two groups as good-sleepers and clinical insomnia according to ISI scores. Predictive validity analyses were also computed via comparing groups. Results Confirmatory factor analysis showed that the scale model aligns well with the original scales 10 items and two-factor structure. The scales and subdimensions Cronbach’s alpha coefficients were excellent (Factor 1; 0.935, factor 2; 0.906, total scale; 0.952). The test-retest correlations were 0.661 and 0.828 for depression group and university student group, respectively. Turkish APSQ scores were found to be significantly higher in both of the clinical groups (depression group vs. university student group, clinic insomnia group vs. good-sleepers group). Conclusion The Turkish APSQ is adequate reliability and validity for assessing anxiety and preoccupation about sleep in Turkish clinical and non-clinical samples.

Turkish Adaptation and Validation of the Adolescent Sleep-Wake Scale

“…We accepted the following values for fit index values: χ 2 /df (chisquared/degree of freedom) less than 5.0, comparative fit index (CFI) greater than 0.90, Tucker-Lewis index (TLI) greater than 0.90, and a standardized root-mean square residual (SRMR) close to or below 0.08 [29][30][31]. Reliability values above 0.70 and items with a factor load > 0.30 were interpreted as meaningful and were accepted [32,33]. A p-value of less than 0.05 was considered statistically significant.…”

A Review of Turkish Self-Reporting Instruments for Sleep Problems in Children, Adolescents, and Adults

“…Tang and Harvey developed the scale in 2004 to measure sleep-related anxiety. 42 Higher scores represent more significant insomnia-related anxiety. In 2022, Uygur et al 42 adapted APSQ to the Turkish language.…”

“… 42 Higher scores represent more significant insomnia-related anxiety. In 2022, Uygur et al 42 adapted APSQ to the Turkish language. The Turkish APSSQ has robust psychometric properties and an excellent internal consistency coefficient (0.95).…”

Adaptation and Validation of the Turkish Version of the Ford Insomnia Response to Stress Test in University Students

“…The Kaiser-Meyer-Olkin value (0.850), Bartlett's test of sphericity (χ 2 = 1386.47, p < 0.001), and determinant value (0.026) (Table 3) suggested the suitability of the data for exploratory factor analysis. 44,45 Parallel analysis results (Table 3) suggested that only one factor had an eigenvalue above 1 (3.742). A scree plot with a reduced correlation matrix (Supplementary Figure 1) showed similar results.…”