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Development of a measure of sleep, circadian rhythms, and mood: The SCRAM questionnaire

Byrne, Jamie, Bullock, B and Murray, G 2017, Development of a measure of sleep, circadian rhythms, and mood: The SCRAM questionnaire, Frontiers in Psychology, vol. 8, pp. 1-10, doi: 10.3389/fpsyg.2017.02105.

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Title Development of a measure of sleep, circadian rhythms, and mood: The SCRAM questionnaire
Author(s) Byrne, JamieORCID iD for Byrne, Jamie orcid.org/0000-0003-3376-9257
Bullock, B
Murray, G
Journal name Frontiers in Psychology
Volume number 8
Article ID 2105
Start page 1
End page 10
Total pages 10
Publisher Frontiers
Place of publication Lausanne, Switzerland
Publication date 2017-12
ISSN 1664-1078
Summary 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, Morningness, and Good Sleep. Confirmatory factor analysis found the three-scale structure provided adequate fit. In both samples, Morningness and Good Sleep were positively associated, and each was negatively associated with the Depressed Mood scale. Further research is now required to quantify the convergent and discriminant validity of its three face-valid and structurally replicated scales. The new sleep, circadian rhythms, and mood (SCRAM) questionnaire is the first instrument to conjointly measure sleep quality, circadian phase, and mood processes, and has significant potential as a clinical tool
Language eng
DOI 10.3389/fpsyg.2017.02105
Field of Research 1701 Psychology
1702 Cognitive Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30155944

Document type: Journal Article
Collections: Faculty of Health
School of Psychology
Open Access Collection
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.