CREDO
HOME
EXPERTISE
RESEARCH & REPORTS
NEWS
ABOUT
Virtual Control Records
>>
Interactive Map of Charter States
>>
16-State Update School Groups
>>
16-State Reading State Charter Impact Changes
>>
16-State Math State Charter Impact Changes
>>
27-State School Level Reading Quality
>>
27-State School Level Math Quality
>>
27-State Reading State Charter Impacts
>>
27-State Math State Charter Impacts
TPS
students
The test scores of the TPS Students are averaged.
Following Year Score minus Baseline Test Score equals Growth.
charter student
Following Year Test Score
Baseline Test Score
Virtual
Twins
charter student
TPS
students
7) Starting Test Score
6) Grade
5) Special Education
4) Lunch Status
3) English Proficiency
2) Ethnicity
1) Gender
Seven criteria define the
characteristics of a Virtual Twin.
From these schools, a pool of
potential matches is created.
Feeder schools are the traditional public schools that students attended before enrolling in a given charter school.
From these schools only
feeders are retained.
The process begins with a list
of potential match schools.
It matches students from charter schools with students from traditional public schools (TPS) to create Virtual Twins.
We compare students through
our Virtual Control Record process.
National Charter School Study 2013
Virtual Control Records
60
62