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MA
DC
-.04
-.06
-.03
-.01
.03
-.01
.08
.12
.03
-.03
.01
.15
.11
-.01
-.04
-.01
-.04
-.07
-.12
-.08
-.02
.03
.05
-.03
-.02
.01
-.04
.07
.04
-.01
-.05
-.08
-.05
-.04
-.06
-.06
-.05
-.04
-.03
-.02
.03
.03
-.03
-.01
.06
.08
.07
.09
.02
.03
-.01
-.02
-.03
.00
.02
.13
.06
.10
-.03
-.01
-.04
-.04
.05
-.03
2013 subgroups
positive
negative
National Charter School Study 2013
Math State Charter Impacts Relative to VCRs
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