Wednesday, March 14, 2018

The Internal and External Validity of the Regression Discontinuity Design: A Meta-Analysis of 15 Within-Study-Comparisons | JPAM Featured Article

Regression discontinuity (RD) is generally acknowledged as the most rigorous non-experimental method for obtaining internally valid impact estimates. The study tests the efficacy of RD by comparing RD causal estimates at the treatment cutoff to those from Randomized Control Trials also estimated at this same cutoff. The study identifies 15 previously completed within-study-comparisons that explicitly examined this issue by assuming the RCT results are unbiased and comparing them to RD results.


Improving the Implementation and Effectiveness of Out-of-School-Time Tutoring

May 22, 2014 10:00 AM

School districts are spending millions on tutoring outside regular school day hours for economically and academically disadvantaged students in need of extra academic assistance. Under No Child Left Behind (NCLB), parents of children in persistently low-performing schools were allowed to choose their child's tutoring provider, and together with school districts, they were also primarily responsible for holding providers in the private market accountable for performance.

In this featured article from the Spring 2014 JPAM, authors Carolyn J. Heinrich, Patricia Burch, Annalee Good, Rudy Acosta,  Huiping Cheng, Marcus Dillender, Christi Kirshbaum, Hiren Nisar, and Mary Stewart present results from a multisite, mixed-method longitudinal study of the impact of out-of-school time (OST) tutoring on student reading and mathematics achievement that link provider attributes and policy and program administration variables to tutoring program effectiveness. The authors find that many students are not getting enough hours of high-quality, differentiated instruction to produce significant gains in their learning, in part because of high hourly rates charged by providers for tutoring. They identify strategies and policy levers that school districts can use to improve OST tutoring policy design and launch improved programs as waivers from NCLB are granted.

Read the whole paper on Wiley Online.


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