Development of a Measure of Sleep, Circadian Rhythms, and Mood: The SCRAM Questionnaire.

ABSTRACT: Sleep quality, circadian phase, and mood are highly interdependent processes. Remarkably, there is currently no self-report questionnaire that measures all three of these clinically significant functions: The aim of this project was to address this deficit. In Study 1, 720 participants completed a set of potential items was generated from existing questionnaires in each of the three domains and refined to follow a single presentation format. Study 2 used an independent sample (N = 498) to interrogate the latent structure. Exploratory factor analysis was used to identify a parsimonious, three-factor latent structure. Following item reduction, the optimal representation of sleep quality, circadian phase, and mood was captured by a questionnaire with three 5-item scales: Depressed Mood

SUBMITTER: Byrne JEM 

PROVIDER: S-EPMC5717824 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature