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- W4236963114 abstract "Abstract Background : As more and more people suffer from sleep disorders, developing an efficient, cheap and accurate assessment tool for screening sleep disorders is becoming more urgent. This study developed a computerized adaptive testing for sleep disorders (CAT-SD). Methods : A large sample of 1,304 participants was recruited to construct the item pool of CAT-SD and to investigate the psychometric characteristics of CAT-SD. More specifically, firstly the analyses of unidimensionality, model fit, item fit, item discrimination parameter and differential item functioning (DIF) were conducted to construct a final item pool which meets the requirements of item response theory (IRT) measurement. In addition, a simulated CAT study with real response data of participants was performed to investigate the psychometric characteristics of CAT-SD, including reliability, validity and predictive utility (sensitivity and specificity). Results: The final unidimensional item bank of the CAT-SD not only had good item fit, high discrimination and no DIF; Moreover, it had acceptable reliability, validity and predictive utility. Conclusions : The CAT-SD could be used as an effective and accurate assessment tool for measuring individuals' severity of the sleep disorders and offers a bran-new perspective for screening of sleep disorders with psychological scales." @default.
- W4236963114 created "2022-05-12" @default.
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- W4236963114 date "2020-04-22" @default.
- W4236963114 modified "2023-09-24" @default.
- W4236963114 title "Computerized Adaptive Testing for Sleep Disorders: Development of An Item Bank and Validation in A Simulated Study" @default.
- W4236963114 doi "https://doi.org/10.21203/rs.3.rs-18576/v1" @default.
- W4236963114 hasPublicationYear "2020" @default.
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