Probably this one: "Evaluation of Evidence-Based Practices in Online Learning A Meta-Analysis and Review of Online Learning Studies" http://www.geteducated.c

Probably this one: "Evaluation of Evidence-Based Practices in Online Learning A Meta-Analysis and Review of Online Learning Studies" http://www.geteducated.com/images/pdfs/doe_online_education_finalreport.pdf http://www.geteducated.com/images/pdfs/doe_online_education_... That's a paper from the DOE from 2009 on online learning, probably that one, as your quote is in there as well - here's the revised edition from 2010 (no clue about the differences), same title but more trustworthy URL: http://www2.ed.gov/rschstat/eval/tech/evidence-based-practices/finalreport.pdf http://www2.ed.gov/rschstat/eval/tech/evidence-based-practic...