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Download full textHorst, Donald P.; Fagan, Barbara M. – 1976
Twelve common errors which can invalidate an otherwise sound evaluation are identified, and ways to avoid them are presented. The hazards are: (1) grade-equivalent scores; (2) inappropriate statistical adjustments with nonequivalent control groups; (3) administering norm-referenced tests at inappropriate times of the school year; (4) inappropriate…
Descriptors: Achievement Gains, Achievement Tests, Educational Testing, Elementary Secondary Education
