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A Meta-Analysis Of Testing Accommodations For Students With Disabilities: Implications For High-Stakes Testing, Michelle Vanchu-Orosco

Electronic Theses and Dissertations

Test accommodations are designed to ensure the comparability of test scores between students and their typically developing counterparts by eliminating as much construct-irrelevant variance and construct-irrelevant difficulty as possible. Although those involved in test creation endeavor to create tests with suitable accommodations for students with disabilities, there is lack of consensus regarding accommodation efficacy. Using meta-analysis and meta-regression to summarize previous research, this study examined whether test accommodations differentially boost test scores of students with disabilities, and whether accommodated conditions provided a more effective and valid assessment of students with disabilities. Results from the meta-analysis of 34 studies (119 effect …