This article is about building new research capacities to foster a fundamental shift in research methods. It examines in detail the new R&D policy of the US Department of Education, which is designed to dramatically increase the number of experiments conducted in schools despite limitations in...

This article analyzes a variety of reasons that are offered within the community of educational researchers to explain why so few randomized controlled trials (RCTs) have been undertaken. The article suggests strategies for dealing with most of these objections. However, some of these objections...