Cover: Addendum to Effectiveness of Cognitive Tutor Algebra I at Scale

Addendum to Effectiveness of Cognitive Tutor Algebra I at Scale

Published May 30, 2014

by John F. Pane, Beth Ann Griffin, Daniel F. McCaffrey, Rita T. Karam

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This addendum to previously published results presents alternative analyses of data from large-scale effectiveness studies of Cognitive Tutor Algebra I in middle schools and high schools. These alternative analyses produce results that are substantively the same as previously reported. We find a significant positive effect of .21 standard deviation units for high school students in the second year of the study.

The research described in this report was prepared for Institute of Education Sciences, U.S. Department of Education and conducted by RAND Education.

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