Algebra 1 Scores & Social Group: Differences Increase from 2015 to 2016

Eugen G Tarnow  February 21 2017 01:43:24 AM

By Eugen Tarnow, Ph.D.
Avalon Business Systems, Inc.
http://AvalonAnalytics.com

As income inequality increases, one would expect standardized test scores to do the same.  In the NJ PARCC Alegra 1 test, this is indeed the case.  Here are the 2015 scores by social group:



And here are the differences between 2016 and 2015



As the social group increases from A to J, the scores go up.  This corresponds to 73% of the variation:



As always, I reserve the right to be wrong.
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