"Exploring Arizona's Private Education Sector" is the seventh installment in our "School Survey Series." EdChoice Director of State Research and Policy Analysis Andrew Catt surveyed Arizona private school leaders about the state's educational choice programs, especially its Empowerment Scholarship Accounts, as well as their…

Through a synthesis of test publisher norms and national longitudinal datasets, this study provides new national norms of academic growth in K-12 reading and math that can be used to reinterpret conventional effect sizes in time units. We propose d' a time-indexed effect size metric to estimate how long it would take for an "untreated"…

Examined the relationship between school system financial and demographic data and student achievement in the science section of the 1998 Tennessee statewide Terra Nova tests. Results indicate that while many schools had science scale score achievement higher than expected based on system demographics, others should examine a variety of…