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Hogan, Thomas P.; Beck, Michael – 1974
Scores on standardized tests may be expressed in a variety of different modes. Raw scores, grade equivalents, percentile ranks, stanines, and standard scores are the major types in use today. The study investigated whether the mode or scale used to express scores affected the magnitude of group statistics, specifically, t and r (the t-test of the…
Descriptors: Comparative Analysis, Correlation, Grade 4, Groups
Barker, Pierce; Pelavin, Sol H. – 1976
This study was mounted to assess the validity of standard score transformations of raw test scores and test bias on the 1970 edition of the Metropolitan Achievement Test Battery, in the context of a controversial federally funded compensatory education program, the Educational Voucher Demonstration (EVD). On an individual level the validity of the…
Descriptors: Achievement Gains, Achievement Tests, Educationally Disadvantaged, Elementary Education
Crowder, Christopher R.; Gallas, Edwin J. – 1978
Both on-level and out-of-level tests were administered to third and fifth grade children in order to compare the scaled scores of different level tests of the same testing program and to discover whether the relationship between levels might be distorted by ceiling or floor effects. Only reading tests were used in this study. The Stanford…
Descriptors: Achievement Tests, Comparative Testing, Difficulty Level, Elementary Education