id author title date pages extension mime words sentence flesch summary cache txt WOS-000247496400005 Witte, J The performance of charter schools in Wisconsin 2007 .txt text/plain 141 7 56 First, a comparison of achievement test scores for students in Milwaukee charter and traditional schools from 1998 to 2002 for grades 3 through 10 finds a relative advantage for charter school students using fixed effects and first difference specifications. How have charter schools in Wisconsin performed relative to traditional public schools? cache/WOS-000247496400005.txt txt/WOS-000247496400005.txt