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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
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Dell, Cindy Ann; Harrold, Barbara; Dell, Thomas – Rehabilitation Counseling Bulletin, 2008
The Wide Range Achievement Test-Fourth Edition (WRAT4) is designed to provide "a quick, simple, psychometrically sound assessment of academic skills". The test was first published in 1946 by Joseph F. Jastak, with the purpose of augmenting the cognitive performance measures of the Wechsler-Bellevue Scales, developed by David Wechsler.…
Descriptors: Sentences, Spelling, Psychological Evaluation, Academic Achievement