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Direct linkDyck, Murray J.; Piek, Jan P.; Patrick, Jeff – Research in Developmental Disabilities: A Multidisciplinary Journal, 2011
We tested whether developmental coordination disorder (DCD) and mixed receptive expressive language disorder (RELD) are valid diagnoses by assessing whether they are separated from each other, from other childhood disorders, and from normality by natural boundaries termed zones of rarity. Standardized measures of intelligence, language, motor…
Descriptors: Attention Deficit Hyperactivity Disorder, Mental Retardation, Autism, Social Cognition
Greenslade, Kathryn J.; Plante, Elena; Vance, Rebecca – Language, Speech, and Hearing Services in Schools, 2009
Purpose: In order to support evidence-based practice, this study served to evaluate the diagnostic accuracy, convergent validity, and divergent validity of the Structured Photographic Expressive Language Test-Preschool: Second Edition (SPELT-P2; J. Dawson, J. A. Eyer, J. Fonkalsrud, 2005) in order to determine whether it can be used as a valid…
Descriptors: Language Impairments, Construct Validity, Preschool Children, Discriminant Analysis
Peer reviewedHagtvet, Knut A.; Hagtvet, Bente E. – Scandinavian Journal of Educational Research, 1990
The discriminant validity of two subscales of the Reynell Developmental Language Scales (RDLS) was investigated using data from 225 children given the RDLS at age 4 and the Illinois Test of Psycholinguistic Abilities at age 5. Results support the hypothesis; the RDLS scales measure distinct but correlated language abilities. (SLD)
Descriptors: Comprehension, Construct Validity, Discriminant Analysis, Expressive Language
