I'm just trying to figure out how the promoted strategy of large scale
randomized controlled trials is going to work in smallish school systems, and
how to appease parents whose children are randomly asigned to either control
or intervention groups, and how things can be kept blind enough to
"eliminate" confounding variables.
See the following:
Identifying and Implementing Educational Practices Supported By Rigorous
Evidence: A User Friendly Guide
http://www.ed.gov/rschstat/research/pubs/rigorousevid/
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