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Wakeman, Holly N.; Wadsworth, Sally J.; Olson, Richard K.; DeFries, John C.; Pennington, Bruce F.; Willcutt, Erik G. – Journal of Learning Disabilities, 2023
This study investigated the relationship between mathematics difficulties and psychopathology in a large community sample (N = 881) of youth (8-18 years of age) in the United States. The primary aims of the study were to (a) test the associations between mathematics difficulties and specific components of internalizing, externalizing, attention,…
Descriptors: Children, Adolescents, Correlation, Learning Problems
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Wikoff, Richard L. – Journal of Consulting and Clinical Psychology, 1978
Determines the number of factors measured by the Peabody Institute Achievement Test (PIAT) subtests and the extent to which subtests measured the factors found. Results indicate only two factors: word recognition, and school-related knowledge. Use of PIAT as a separate test in a battery containing the WISC-R is supported. (Author/BEF)
Descriptors: Achievement Tests, Children, Cognitive Development, Correlation
Dean, Raymond S. – 1976
This study sought to determine the convergent and discriminant validity of the PIAT when administered to separate samples of Anglo and Mexican-American children. Thirty-one Mexican-American and 31 Anglo-American children were matched on the basis of sex, age, SES, educational placement, and reason referred for psychological assessment. All…
Descriptors: Achievement Tests, Anglo Americans, Children, Correlation