Comparable Improvement (CI) is a measure that shows how student
performance on the TAKS reading/ELA and mathematics tests at
a given school has changed (or grown) from one year to the next,
and then compares that change to that of the 40 schools that
are demographically most similar to the given, or "target" school.
The average Vertical Scale Growth (VSG) values for the 40 member
group are rank ordered and the resulting list is divided into
fourths, or quartiles. Schools that fall into the first quartile
(i.e. top 10 schools of the 40 in their campus group) receive
Gold Performance Acknowledgment for CI.
From this web page you can access a school's comparison group to
see a list of the 40 schools most similar to the school. For non-secondary
schools you can also see the performance growth of each school on that list.
Simply go to the Campus Group and CI Report.
An explanation of the grouping methodology and Comparable Improvement can be found in
the AEIS Glossary.
Two other items are available through this web page: the District
Summary (in PDF and HTML format) provides a list of
all the schools in a district with their CI quartiles; and the Quartile
Summary provides an analysis of the quartile positions
of the 40 schools in a target school's group.
Please note that comparison groups and CI are calculated only for
schools, not districts.
