The Psychometric Properties of the Nonrestorative Sleep Scale and a Prospective Observational Study of the Physiological Correlates of Nonrestorative Sleep
Year: 2012
Type: dissertation
Study design: Observational Study
Abstract: Nonrestorative sleep refers to the experience of sleep as insufficiently refreshing, often despite the appearance of normal sleep according to objective parameters. As a result, a valid and reliable measure of the subjective experience of NRS is required in order to allow for standardization and comparability in its assessment. This thesis reports the results of a study involving the development and validation of a scale to assess NRS, the Nonrestorative Sleep Scale (NRSS). The psychometric properties of the NRSS were assessed in a group of 256 participants recruited from a sleep clinic population. Principal component analysis revealed four domains. The scale demonstrated good internal and test-retest reliability and reasonable validity compared to other measures. Overnight polysomnographic variables were also compared to scores on the scale and a few were found to be weakly correlated with scale scores. These included alpha EEG, sleep efficiency, and REM latency.
Source: TSpace (University of Toronto)
Author: Kate Wilkinson
Language: English
Topic: Sleep and related disorders
Subfield: Experimental and Cognitive Psychology
Field: Psychology
Domain: Social Sciences
Open Access status: green
OpenAlex ID: W2600806964