Psychometric properties of the Patient-Reported Outcomes Measurement Information System (PROMIS) Sleep Disturbance and Sleep-Related Impairment item banks in adolescents

Jojanneke A.M.C. van Kooten, Caroline B. Terwee, Michiel A.J. Luijten, Lindsay M.H. Steur, Sigrid Pillen, Nicole G.J. Wolters, Gertjan J.L. Kaspers, Raphaële R.L. van Litsenburg*

*Corresponding author for this work

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Sleep problems have a high prevalence and negative daytime consequences in adolescents. Current sleep measures for this age group have limitations. The Patient-Reported Outcomes Measurement Information System (PROMIS®) developed sleep item banks for adults. In a previous validation study, these item banks were adapted to a shortened version for adolescents. The current study aimed to further explore the psychometric properties of the 11-item Sleep-Related Impairment and 23-item Sleep Disturbance item banks in Dutch adolescents. We investigated structural validity by testing item response theory assumptions and model fit; measurement invariance by performing differential item functioning analyses; performance as a computerized adaptive test; reliability by marginal reliability estimates and test–retest reliability (intraclass correlation coefficients and limits of agreement); and construct validity by hypothesis testing. Additionally, we provide mean values for the item banks. The study sample consisted of 1,046 adolescents (mean age 14.3 ± 1.6), including 1,013 high-school students and 33 sleep-clinic patients. The Sleep Disturbance-23 showed lack of unidimensionality, but had sufficient test–retest reliability, and could distinguish between adolescents with and without sleep or health issues. The Sleep-Related Impairment-11 showed sufficient unidimensionality and model fit and was thus tested as a computerized adaptive test, demonstrating an equal amount of reliable measures to the full item bank. Furthermore, the Sleep-Related Impairment-11 could distinguish between adolescents with and without sleep or health issues and test–retest reliability was moderate. The use of both item banks in the full form and the use of the Sleep-related Impairment-11 as a computer adaptive test is recommended.

Original languageEnglish
Article numbere13029
JournalJournal of Sleep Research
Issue number2
Publication statusPublished - Apr 2021

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