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Performance on large-scale science tests: item attributes that may impact achievement scores: Author: Gordon, Janet Victoria; Date: 2008-05-15; Program: Education; Abstract: Significant differences in achievement among ethnic groups persist on the eighth-grade science Washington Assessment of Student Learning (WASL). The WASL measures academic performance in science using both scenario and stand-alone question types. Previous research suggests that presenting target items connected to an authentic context, like scenario question types, can increase science achievement scores especially in underrepresented groups and thus help to close the achievement gap. The purpose of this study was to identify significant differences in performance between gender and ethnic sub...; Download File | View full details