Psychometric properties of a sleep questionnaire for use in individuals with intellectual disabilities

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• 作者：Anneke P.H.M. Maas^a ;   ; ^b ;   ; ^c ;   ; ^d ;   ; ^{a.maas@pwo.ru.nl} ; Robert Didden^b ;   ; ^e ;   ; ^f ; Hubert Korzilius^g ; Wiebe Braam^b ;   ; ^d ; Philippe Collin^b ;   ; ^h ; Marcel G. Smits^b ;   ; ⁱ ; Leopold M.G. Curfs^a ;   ; ^b ;   ; ^j
• 关键词：Sleep questionnaire ; Intellectual disability ; Reliability ; Validity ; Factor analysis
• 刊名：Research in Developmental Disabilities
• 出版年：2011
• 出版时间：November-December 2011
• 年：2011
• 卷：32
• 期：6
• 页码：2467-2479
• 全文大小：413 K

文摘

We examined the psychometric properties of one part of the Sleep Questionnaire developed by , a questionnaire that is frequently used to explore sleep problems and behaviors related to sleep in individuals with intellectual disability (ID). The SQ¨CSP was completed for 345 individuals with ID (sleep clinic n = 146; control group n = 103; published studies n = 68; psychiatric clinic n = 28). Internal consistency was good (Cronbach's ¦Á = .80) and test¨Cretest reliability for the total SQ¨CSP score was also good (Spearman's rank correlation = .83, p < .01). Convergent validity was adequate (r = .79, p < .001) and concurrent validity was satisfactory (r = .52, p < .001). Exploratory factor analysis suggested a 5-factor structure (Snoring, Daytime sleepiness, Complaints related to sleep, Sleep apnea and Anxiety related to sleep). Internal consistency of the five factors ranged from modest (Cronbach's ¦Á = .57) to good (Cronbach's ¦Á = .82). Confirmatory factor analysis corroborated the 5-factor structure. The Composite Sleep Index, the total SQ¨CSP score and the factor scores on Daytime Sleepiness and Complaints related to sleep were able to differentiate the control group from the sleep clinic group. The SQ¨CSP appears to be a reliable and valid tool in assessing sleep and different types of sleep disturbance in individuals with ID.