Psychometric properties of the Adolescent Sleep Hygiene Scale

Amy Storfer-Isser, Monique K Lebourgeois, John Harsh, Carolyn J Tompsett, Susan Redline, Amy Storfer-Isser, Monique K Lebourgeois, John Harsh, Carolyn J Tompsett, Susan Redline

Abstract

This study evaluated the psychometric properties of the Adolescent Sleep Hygiene Scale (ASHS), a self-report measure assessing sleep practices theoretically important for optimal sleep. Data were collected on a community sample of 514 adolescents (16-19; 17.7 ± 0.4 years; 50% female) participating in the late adolescent examination of a longitudinal study on sleep and health. Sleep hygiene and daytime sleepiness were obtained from adolescent reports, behavior from caretaker reports, and sleep-wake estimation on weekdays from wrist actigraphy. Confirmatory factor analysis indicated the empirical and conceptually based factor structure were similar for six of the eight proposed sleep hygiene domains. Internal consistency of the revised scale (ASHSr) was α = 0.84; subscale alphas were: physiological: α = 0.60; behavioural arousal: α = 0.62; cognitive/emotional: α = 0.81; sleep environment: α = 0.61; sleep stability: α = 0.68; daytime sleep: α = 0.78. Sleep hygiene scores were associated positively with sleep duration (r = 0.16) and sleep efficiency (r = 0.12) and negatively with daytime sleepiness (r = -0.26). Results of extreme-groups analyses comparing ASHSr scores in the lowest and highest quintile provided further evidence for concurrent validity. Correlations between sleep hygiene scores and caretaker reports of school competence, internalizing and externalizing behaviours provided support for convergent validity. These findings indicate that the ASHSr has satisfactory psychometric properties for a research instrument and is a useful research tool for assessing sleep hygiene in adolescents.

Keywords: adolescence; adolescent sleep hygiene scale; confirmatory factor analysis; paediatric sleep questionnaire; psychometrics; sleep hygiene.

© 2013 European Sleep Research Society.

Figures

Figure 1
Figure 1
Factor Structure of the Revised 24-item Adolescent Sleep Hygiene Scale (ASHSr) and Factor Loadings from the Second-Order Factor Analysis

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