Li, H., & Suen, H. (2012). Are test accommodations for English language learners fair? Language Assessment Quarterly , 9 (2012), 293–309. doi:10.1080/15434303.2011.653843
Li, H., & Suen, H. (2012). Are test accommodations for English language learners fair? Language Assessment Quarterly, 9(2012), 293–309. doi:10.1080/15434303.2011.653843
Sample size not applicable due to design of study (meta-analysis)
dictionary, glossary, simplified English, extra time, small-group testing, dual-language booklet, Spanish translation, read aloud in Spanish, visual support
ELLs and non-ELLs using test accommodations spanning grades 3-8, grade 10, and college
Based on a meta-analysis including 21 studies and 151 comparisons the authors identified a grand mean effect size of 0.08. This means on average across studies students (EL and non-EL) scored 0.08 standard deviations better when given accommodations. The effect size for accommodations provided to non-EL’s was small, negative and statistically non-significant. Accommodated EL students had an average score of 0.156 standard deviations above their non-accommodated counterparts. This provides evidence for the both the fairness and effectiveness of accommodations for English learners based on a differential effect argument.