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Bloland, Ruth Marian1
Michael, William B.1
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Bloland, Ruth Marian; Michael, William B. – Educational and Psychological Measurement, 1984
This study compared the validity of chronological age, a standardized algebra prognosis test, standardized verbal and quantitative scales derived from an achievement test battery, and an objective measure of formal or concrete stages of Piagetian cognitive development for predicting final examination scores and course grades in high school…
Descriptors: Achievement Tests, Age, Algebra, Cognitive Development