Assessments by Model

Growth Standard Methodology

This analytic model is used for subjects that are assessed in consecutive grades.

• PSSA Math and ELA in grades 4 through 8
• Acadeince (DIBELS Next), aimsweb, DIBELS, EasyCBM, Exact Path, FastBridge, i-Ready, IXL, MAP, STAR

Predictive Methodology

This analytic model is used for subjects that are assessed in non-consecutive or consecutive grades, including when students move from one assessment type to another:

• PSSA Science in grades 4 and 8
• Keystone Algebra I, Biology, and Literature
• All CDT assessments
• AP Biology, AP Calculus AB, AP English Language and Composition, AP English Literature and Composition, AP Psychology, AP Statistics, AP United States Government and Politics, and AP United States History

For more information regarding CDT and local assessments, please refer to the CDT and Local Assessments help page.

For more information regarding Keystone retesters, please refer to the Including Retesters' Keystone Scores help page.

Reference Group by Assessment

Assessment	Reference Group
PSSA and Keystone Assessments	State distribution
CDT	Pool of districts submitting CDTs in the given year
Acadeince, aimsweb, DIBELS, EasyCBM, Exact Path, FastBridge, i-Ready, MAP, STAR	National Norms
AP Exams	Statewide population of AP test takers