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Direct linkErford, 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
