VALIDITY AND RELIABILITY OF THE VERRAN AND SNYDER-HALPERN SLEEP SCALE IN IRANIAN POPULATION

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MASHAYEKHI FATEMEH; MIRZAI SAIFABAD REZA; BAGHERI PEZHMAN

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Journal Paper

Paper Information

Journal: JOURNAL OF MAZANDARAN UNIVERSITY OF MEDICAL SCIENCES Year:2016 | Volume:25 | Issue:132 Page(s): 200-209

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Information Journal Paper

Title

VALIDITY AND RELIABILITY OF THE VERRAN AND SNYDER-HALPERN SLEEP SCALE IN IRANIAN POPULATION

Author(s)

MASHAYEKHI FATEMEH | MIRZAI SAIFABAD REZA | BAGHERI PEZHMAN | Issue Writer Certificate

Keywords

VISUAL ANALOG SCALEQ2

RELIABILITYQ2

VALIDITYQ2

SLEEP QUALITYQ2

Abstract

Background and purpose: The aim of the present study was to examine the VALIDITY, RELIABILITY and factor structure analysis of the Persian version of the Verran and Snyder-Halpern Sleep Scale (VSH). This scale is used to evaluate SLEEP QUALITY in hospitalized patients and their perception of sleep for the preceding night.Materials and methods: The Persian version of the scale was provided using forward translation. Then, 220 hospitalized patients were randomly selected to complete the approved version of the VSH sleep scale. Face VALIDITY was confirmed by experts, and content VALIDITY and construct VALIDITY were confirmed by CVR and exploratory factor analysis, respectively. The RELIABILITY of the items was determined by Cronbach's alpha coefficient and bisection method.Results: Cronbach's alpha coefficient and RELIABILITY of the scale was 0.43 before the analysis. Exploratory factor analysis with principal components and varimax rotation led to the extraction of three factors. The first was sleep disturbance that included 6 items of the 7 items in VSH sleep scale. The second was sleep supplementation that included 3 items of the 4 items in the scale. The last factor was sleep effectiveness which included only a single item from 5 items thereby, being removed from the scale. The remaining two factors explained 55.31% of the total variance. Cronbach's alpha coefficient of the new questions was 0.83 and using Bisection test the correlation coefficient was 0.7.Conclusion: RELIABILITY and VALIDITY of the Persian form of the VSH sleep scale proves that this version is appropriate for measuring the quality of sleep in Iranian hospitalized population.

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