Publications & Resources

Progress Report Year 4: National Center for Research on Evaluation, Standards,and Student Testing (CRESST) The Development and Impact of POWERSOURCE©

May 2011

Eva L. Baker

The POWERSOURCE© intervention is intended to be a powerful formative assessment strategy that can be integrated with any ongoing mathematics curriculum. The key goal is to to improve teachers’ knowledge and practice and, in turn, student learning in middle school mathematics. In this 4th year study, researchers provide updated results from the 2006-2007 experimental (randomized) field test of POWERSOURCE© and present findings from the 2007-2008 school year on student and teacher outcomes. Researchers found that a short targeted POWERSOURCE© intervention on key mathematical principles had a positive student performance impact on a transfer measure of related content. POWERSOURCE© had more impact on the higher-performing students than the lower-performing students. They also found a stronger effect on more difficult mathematics items.

Baker, E. L. (2011). Progress Report Year 4: National Center for Research on Evaluation, Standards, and Student Testing (CRESST) The Development and Impact of POWERSOURCE© (CRESST Report 795). Los Angeles: University of California, Los Angeles, National Center for Research on Evaluation, Standards, and Student Testing (CRESST).