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Hauser, Carl; Kingsbury, Gage – Northwest Evaluation Association, 2004
This study was designed to answer two key questions about the fixed portions of the fourth, eighth, and tenth grade spring 2003 Idaho Standards Achievement Tests (ISAT) in Reading, Language Usage and Mathematics: (1) To what extent do test items exhibit substantive differences in functioning across student groups formed based on ethnicity and…
Descriptors: Grade 4, Grade 8, Grade 10, Test Items