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Hart, Sara A.; Petrill, Stephen A.; Thompson, Lee A.; Plomin, Robert – Journal of Educational Psychology, 2009
The goal of this first major report from the Western Reserve Reading Project Math component is to explore the etiology of the relationship among tester-administered measures of mathematics ability, reading ability, and general cognitive ability. Data are available on 314 pairs of monozygotic and same-sex dizygotic twins analyzed across 5 waves of…
Descriptors: Twins, Reading Fluency, Problem Solving, Genetics
Reynolds, Cecil R.; And Others – 1980
Regression lines for the prediction of Wide Range Achievement Test (WRAT) standard scores by Stanford-Binet Intelligence Scale scores were compared across race for matched groups of 60 black and 60 white children selected from among a large number of children who had been referred for psychological services by their classroom teachers. The white…
Descriptors: Academic Achievement, Black Students, Elementary Education, Intelligence Tests