The regression discontinuity design (RDD) has the potential to yield findings with causal validity approaching that of the randomized controlled trial (RCT). However, Schochet (2008a) estimated that, on average, an RDD study of an education intervention would need to include three to four times as many schools or students as an RCT to produce…

The alarming rise of office referrals, suspensions, and expulsions among students in public schools, have been a major concern for stakeholders in learning communities throughout the country. The Individuals with Disabilities Act (2001) and The No Child Left Behind Act (2001) mandated state and local educational agencies to implement scientific…

When attempting to determine if an intervention has a causal impact, the "gold standard" of program evaluation is the randomized controlled trial (RCT). In education studies random assignment is rarely feasible at the student level, making RCTs harder to conduct. School-level assignment is more common but this often requires considerable resources…