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.crpe.org/cs/crpe/view/csr_pubs/12
The National Charter School Research Project, an initiative of the University of Washington's Center on Reinventing Public Education, has released a guide to help reporters evaluate the quality of charter school achievement studies. It also can be used to interpret other charter school or general education research. The document presents a list of "critical consumer questions," such as: (1) does the report compare apples to apples; (2) how large and representative is the study's sample and comparison group; (3) does the report look at test scores from one or more than one year; and (4) are the findings overstated. The guide also lists problems with common methods for measuring achievement in charter and traditional schools.
Date: 2007
Source: National Charter School Research Project
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