Refinement and Psychometric Properties of the Self-Efficacy for Sleep Hygiene Inventory

Abstract

The purpose of this study was to determine key concepts of self-efficacy for sleep hygiene among young adults/college students and sleep experts, and to refine the Self-Efficacy for Sleep Hygiene Inventory. The Self-Efficacy for Sleep Hygiene Inventory was revised using input from young adult focus groups and experts. Information from focus groups informed instrument revision. The revised instrument was distributed using an electronic survey to young adults age 18-26 years for a total sample of 296. A principal component analysis with Varimax Orthogonal Rotation was conducted resulting in a three-factor solution. Cronbach's alphas were: .85 for Behaviors to Adopt (nine items), .79 for Manage Mindset and Environment (eight items), .70 for Behaviors to Avoid (eight items), and .88 for the inventory (twenty-five items). Initial psychometric testing of the Self-Efficacy for Sleep Hygiene Inventory-Revised indicates that it is a reliable measure of self-efficacy for sleep hygiene in young adults age 18-26 years.

Keywords: psychometrics; self-efficacy for sleep hygiene; sleep; sleep-hygiene; young adult.