… Education Curriculum and Instruction Battleground Schools E. Wayne Ross Sandra Mathison 2008 visibility description 762 pages Sign up for access to the world's latest research check Get notified about relevant papers check Save papers to use in your research check Join the discu…

…ng the performance period for the PSI 90 measure, we relied upon an analysis by Mathematica Policy Research, a CMS contractor, which found the measure was most reliable with a 24-month performance period. This analysis also indicated the measure was unreliable with a performance …