An important—but fixable—flaw in the What Works Clearinghouse that can make ineffective programs appear effective (part three in a series)
Highlights: This report, like the previous one, offers constructive criticism of the What Works Clearinghouse (WWC), a widely-cited repository of evidence on “what works” in education that has successfully advanced rigorous evidence standards but also has flaws that...How What Works Clearinghouse reviews sometimes make ineffective education programs appear effective (part two in a series)
Highlights: The Institute of Education Sciences’ (IES) What Works Clearinghouse (WWC) is a widely-cited repository of evidence on “what works” in education. Since its launch in 2003, the WWC has played a central role in advancing rigorous evaluation methods in the...How “official” evidence reviews can make ineffective programs appear effective (part one in a series)
Highlights: A recent Department of Health and Human Services (HHS) report reviews existing evidence on the long-term effects of four home visiting program models for families with young children. Report findings include: (i) “all four… models have found improvements...Overstated findings, published in Science, on long-term health effects of a well-known early childhood program
Highlights: We review an article, published in a leading scientific journal (Science), that reported on long-term health effects of the Abecedarian early childhood program as measured in a randomized trial. The article reported that the program, which provided...Showing 5 of 11 Reviews