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Shanahan, Paul; Ahmad, Shahnaz; Smith, Kimberley; Palod, Swapnil; Fife-Schaw, Chris – British Journal of Learning Disabilities, 2023
Background: Previous research indicated a high prevalence of disordered sleep among adults with learning disabilities, however issues with design impacted findings. The current systematic review aims to: (1) present how disordered sleep and sleep disorders amongst adults with learning disabilities are described in the literature, and (2) report on…
Descriptors: Incidence, Sleep, Adults, Learning Disabilities
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Jewsbury, Paul A.; Bowden, Stephen C. – Psychological Assessment, 2013
Mixed Group Validation (MGV) is an approach for estimating the diagnostic accuracy of tests. MGV is a promising alternative to the more commonly used Known Groups Validation (KGV) approach for estimating diagnostic accuracy. The advantage of MGV lies in the fact that the approach does not require a perfect external validity criterion or gold…
Descriptors: Diagnostic Tests, Test Validity, Accuracy, Research Design