Adaptation and validation of the Sleep Quality Scale among Saudi population (A-SQS)

The quality of sleep has a significant impact on an individual's health and overall well-being. Given the variability of factors that impact sleep quality and their varying degrees of significance between individuals, the utilization of a self-report approach becomes necessary. The Sleep Quality Scale (SQS) is a widely used self-report measure designed to evaluate sleep quality. It consists of six distinct techniques and encompasses a total of 28 items. The aim of this study was to translate and validate the SQS in the Saudi population.

A cross-sectional approach was applied to evaluate the reliability, validity, and cross-cultural suitability of the Arabic adaptation of the Sleep Quality Scale (A-SQS) in a sample consisting of 402 individuals, with 33.9% representing females.

The test-retest reliability was found to be significant, with a coefficient of 0.88 at a 15-day interval. Additionally, the principal component factor (PCF) analysis revealed five factors, that accounted for 56.29 % of the total variance. The Cronbach's alpha coefficient was 0.90 for internal consistency.

This result determined that the A-SQS possesses a valid and reliable 5-factor structure when applied to the Saudi population. These therefore renders the scale a valid and reliable instrument in both clinical practice and clinical research.