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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
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van Iterson, Loretta; Augustijn, Paul B.; de Jong, Peter F.; van der Leij, Aryan – Journal of Psychoeducational Assessment, 2013
The goal of this study was to investigate reliable cognitive change in epilepsy by developing computational procedures to determine reliable change index scores (RCIs) for the Dutch Wechsler Intelligence Scales for Children. First, RCIs were calculated based on stability coefficients from a reference sample. Then, these RCIs were applied to a…
Descriptors: Foreign Countries, Epilepsy, Children, Cognitive Development
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Mouridsen, Svend Erik; Bronnum-Hansen, Henrik; Rich, Bente; Isager, Torben – Autism: The International Journal of Research and Practice, 2008
This study compared mortality among Danish citizens with autism spectrum disorders (ASDs) with that of the general population. A clinical cohort of 341 Danish individuals with variants of ASD, previously followed over the period 1960-93, now on average 43 years of age, were updated with respect to mortality and causes of death. Standardized…
Descriptors: Epilepsy, Autism, Foreign Countries, Mortality Rate