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Direct linkO'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
