Instrumentation to describe subjective sleep characteristics in healthy subjects

TLDR

The study aimed to develop and evaluate the Verran and Snyder‑Halpern Sleep Scale as a subjective measure of sleep characteristics. Researchers proposed four sleep factors, administered the VSH Sleep Scale alongside a sleep questionnaire and log in random order on three consecutive mornings, and assessed validity through factor analysis, item correlations, and known‑groups comparisons. The VSH Sleep Scale demonstrated a reliability coefficient of .82 and initial evidence supporting its validity.

Abstract

Abstract The purpose of this study was to develop and test the Verran and Snyder‐Halpern (VSH) Sleep Scale, an instrument to subjectively measure sleep characteristics. Four major sleep factors and their associated characteristics were proposed for the Sleep Scale. Subjects completed three randomly ordered sleep questionnaires on three consecutive weekday mornings within the first two hours after arising. Scales included the VSH Sleep Scale, a sleep questionnaire and a sleep log. The VSH Sleep Scale had a reliability coefficient of .82 (theta). Construct validity was examined by factor analysis and correlations between Sleep Scale items and corresponding items on the two other study instruments. Scale validity also was assessed by the known groups method. Beginning support for the validity of the VSH Sleep Scale is provided.