id author title date pages extension mime words sentence flesch summary cache txt 6395w66521j Ning Jia Essays in Education Economics 2015 .txt text/plain 431 16 29 The results suggest that the effectiveness of math reforms on college STEM attainment depends on the specific features, and to effectively improve college STEM attainment for all groups, different policy interventions might be necessary. In the third chapter, I examine the gap in college STEM attainment between immigrant and native students. cache/6395w66521j.txt txt/6395w66521j.txt