Twelve studies find that overall gains in charter schools are larger than other public schools; four find charter schools’ gains higher in certain significant categories of schools; six find comparable gains; and, four find that charter schools’ overall gains lagged behind traditional schools.
Source: Charter School Achievement: What We Know, July 2005 Update
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http://www.naschools.org/contentViewer.asp?highlightID=8&catID=461
This research brief explores the emerging role of value-added analysis in shaping accountability systems.
Date: 2003
Source: National School Boards Association, New American Schools
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