Psychometric properties of insomnia severity index in Iranian adolescents

Objectives: Sleep deprivation and insomnia have negative impacts on mental and physical health in adolescents. In order to examine the problems caused by insomnia, we need tools with acceptable validity and reliability for the target population. The aim of this study was to e...

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Main Authors: Azita Chehri, Nastaran Goldaste, Saman Ahmadi, Habibolah Khazaie, Amir Jalali
Format: Article
Language:English
Published: Brazilian Association of Sleep and Latin American Federation of Sleep Societies 2021-06-01
Series:Sleep Science
Subjects:
Online Access:https://sleepscience.org.br/export-pdf/2994/v14n2a03.pdf
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spelling doaj-3411159a204242a7a202204ea7784eb22021-08-04T13:33:33ZengBrazilian Association of Sleep and Latin American Federation of Sleep Societies Sleep Science1984-06591984-00632021-06-0114210110610.5935/1984-0063.20200045Psychometric properties of insomnia severity index in Iranian adolescentsAzita Chehri0Nastaran Goldaste1Saman Ahmadi2Habibolah Khazaie3Amir Jalali4Department of Psychology, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran.Department of Psychology, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran.Department of Psychology, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran.Sleep Disorders Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.Substance Abuse Prevention Research Center, Research Institute for Health, Kermanshah University of Medical Sciences, Kermanshah, Iran.Objectives: Sleep deprivation and insomnia have negative impacts on mental and physical health in adolescents. In order to examine the problems caused by insomnia, we need tools with acceptable validity and reliability for the target population. The aim of this study was to evaluate the psychometric properties of Insomnia Severity Index (ISI) in Iranian adolescent population. Material and Methods: The study was carried out as a descriptive-analytic normalization. Study group consisted of 701 adolescents aged 12 to 19, who were selected through cluster sampling. The participants completed ISI, Epworth Sleepiness Scale (ESS), Pittsburgh Sleep Quality Inventory (PSQI), Adolescent sleep hygiene scale (ASHS) and global sleep assessment questionnaire (GSAQ). In addition, SPSS ver.22 and AMOSS ver.10 were used to analyze the data. Results: The reliability of the test was obtained equal to 0.77 based on Cronbach’s alpha and a good reliability (0.84) was obtained through test/retest method. Exploratory and confirmatory factor analyses with seven items were computed. The models fitness indexes were suitable for the structural model (CFI=0.99%, NFI=0.98%, GFI=0.99%, TLI=0.98%, RMSEA=0.049%). Moreover, there was a direct and significant correlation between the ISI index and the total score of other indexes. As to gender-based reliability, Cronbach’s alpha was 0.78 in female adolescents and 0.85 in male adolescents. Conclusion: The results indicated that the Persian version of the insomnia severity index can be used as a reliable and valid tool for assessing the severity of insomnia in Persianspeaking adolescents.https://sleepscience.org.br/export-pdf/2994/v14n2a03.pdfinsomnia severity indexreliabilityvalidationpersianadolescent
collection DOAJ
language English
format Article
sources DOAJ
author Azita Chehri
Nastaran Goldaste
Saman Ahmadi
Habibolah Khazaie
Amir Jalali
spellingShingle Azita Chehri
Nastaran Goldaste
Saman Ahmadi
Habibolah Khazaie
Amir Jalali
Psychometric properties of insomnia severity index in Iranian adolescents
Sleep Science
insomnia severity index
reliability
validation
persian
adolescent
author_facet Azita Chehri
Nastaran Goldaste
Saman Ahmadi
Habibolah Khazaie
Amir Jalali
author_sort Azita Chehri
title Psychometric properties of insomnia severity index in Iranian adolescents
title_short Psychometric properties of insomnia severity index in Iranian adolescents
title_full Psychometric properties of insomnia severity index in Iranian adolescents
title_fullStr Psychometric properties of insomnia severity index in Iranian adolescents
title_full_unstemmed Psychometric properties of insomnia severity index in Iranian adolescents
title_sort psychometric properties of insomnia severity index in iranian adolescents
publisher Brazilian Association of Sleep and Latin American Federation of Sleep Societies
series Sleep Science
issn 1984-0659
1984-0063
publishDate 2021-06-01
description Objectives: Sleep deprivation and insomnia have negative impacts on mental and physical health in adolescents. In order to examine the problems caused by insomnia, we need tools with acceptable validity and reliability for the target population. The aim of this study was to evaluate the psychometric properties of Insomnia Severity Index (ISI) in Iranian adolescent population. Material and Methods: The study was carried out as a descriptive-analytic normalization. Study group consisted of 701 adolescents aged 12 to 19, who were selected through cluster sampling. The participants completed ISI, Epworth Sleepiness Scale (ESS), Pittsburgh Sleep Quality Inventory (PSQI), Adolescent sleep hygiene scale (ASHS) and global sleep assessment questionnaire (GSAQ). In addition, SPSS ver.22 and AMOSS ver.10 were used to analyze the data. Results: The reliability of the test was obtained equal to 0.77 based on Cronbach’s alpha and a good reliability (0.84) was obtained through test/retest method. Exploratory and confirmatory factor analyses with seven items were computed. The models fitness indexes were suitable for the structural model (CFI=0.99%, NFI=0.98%, GFI=0.99%, TLI=0.98%, RMSEA=0.049%). Moreover, there was a direct and significant correlation between the ISI index and the total score of other indexes. As to gender-based reliability, Cronbach’s alpha was 0.78 in female adolescents and 0.85 in male adolescents. Conclusion: The results indicated that the Persian version of the insomnia severity index can be used as a reliable and valid tool for assessing the severity of insomnia in Persianspeaking adolescents.
topic insomnia severity index
reliability
validation
persian
adolescent
url https://sleepscience.org.br/export-pdf/2994/v14n2a03.pdf
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