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BIRCH, JACK W.; AND OTHERS – 1966
THE RELATIONSHIP BETWEEN VISUAL DEFICITS AND ACHIEVEMENT WAS STUDIED. PARTIALLY SEEING CHILDREN (424) FROM THE FIFTH AND SIXTH GRADES WERE ADMINISTERED FIVE EQUIVALENT FORMS OF A STANDARDIZED TEST CONTAINING SCHOOL-LIKE READING TASKS. A LATIN SQUARE DESIGN WAS USED TO SPREAD THE EFFECTS OF TEACHERS' SKILL IN TEST ADMINISTRATION, PRACTICE, LEVELS…
Descriptors: Achievement Tests, Comparative Analysis, Grade 5, Grade 6