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Direct linkDell, 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
O'Brocki, Catherine M.; Moore-Thomas, Cheryl; Erford, Bradley T. – Measurement and Evaluation in Counseling and Development, 2007
The technical characteristics of scores on the Reading Essential Skills Screener-Upper Elementary Version (B. T. Erford, G. Vitali, R. Hass. & R. R. Boykin, 1995) were studied using 4 independent samples of boys and girls in Grades 4-6. Decision efficiency, principal axis factor analysis, internal consistency, 30-day test-retest reliability,…
Descriptors: Elementary School Students, Test Reliability, Construct Validity, Reading Skills
Erford, Bradley T.; Klein, Lauren – Educational and Psychological Measurement, 2007
The Slosson-Diagnostic Math Screener (S-DMS) was designed to help identify students in Grades 1 to 8 at risk for mathematics failure. Internal consistency, test-retest reliability, item analysis, decision efficiency, convergent validity, and factorial validity of all five levels of the S-DMS were studied using 20 independent samples of students…
Descriptors: Grade 1, Test Validity, Item Analysis, Test Reliability
