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McKenzie, Karen; Sharples, Phil; Murray, Aja L. – Intellectual and Developmental Disabilities, 2015
The Learning Disability Screening Questionnaire (LDSQ), a brief screening tool for intellectual disability, was originally validated against the Weschler Adult Intelligence Scale, Third Edition (WAIS-III), which was superseded by the Weschler Adult Intelligence Scale, Fourth Edition (WAIS-IV) in the United Kingdom in 2010. This study examines the…
Descriptors: Foreign Countries, Mental Retardation, Screening Tests, Questionnaires
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MacLean, Hannah; McKenzie, Karen; Kidd, Gill; Murray, Aja L.; Schwannauer, Matthias – Research in Developmental Disabilities: A Multidisciplinary Journal, 2011
Intellectual assessment is central to the process of diagnosing an intellectual disability and the assessment process needs to be valid and reliable. One fundamental aspect of validity is that of measurement invariance, i.e. that the assessment measures the same thing in different populations. There are reasons to believe that measurement…
Descriptors: Mental Retardation, Factor Analysis, Goodness of Fit, Evaluation Methods