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Stringer, Ronald W.; Heath, Nancy – Canadian Journal of School Psychology, 2006
One hundred and fifty-five students (average age of 127 months) were tested using the WRAT-3 reading and arithmetic subtests, the Self-Perception Profile for Children with Learning Disabilities (SPPLD) and the Children's Depression Inventory (CDI). One year later they were again tested with the same instruments. The authors hypothesised that…
Descriptors: Age Differences, Self Concept Measures, Arithmetic, Depression (Psychology)
Hitchcock, Dale C.; Pinder, Glenn B. – 1974
National estimates of school achievement as measured by the reading and arithmetic subtests of the Wide Range Achievement Test (WRAT) for the noninstitutionalized population of the United States aged 12-17 years are presented. Data were obtained in the Health Examination Survey (HES) of 1966-70. In the survey a probability sample of 7,514 youths…
Descriptors: Academic Achievement, Achievement Tests, Adolescents, Age Differences