Virtual Control Records Infographic

CREDO

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