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...Yes, some blockbuster RCT findings successfully replicate: Per Scholas employment/training produces major earnings gains for low-income workers
Highlights: In social policy as in medicine, many positive initial research findings for a program or treatment are not reproduced in subsequent rigorous evaluations. The good news is that some important positive findings do reproduce. This report highlights a recent...Credible, actionable evidence on how to prevent sexual assault on university campuses
Highlights: We highlight recent results of a randomized controlled trial (RCT) of a sexual assault resistance program for first-year female university students. The RCT found that the program nearly halved the incidence of rape over a 12-month period, from 9.8 percent...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...Disappointing findings on Conditional Cash Transfers as a tool to break the poverty cycle in the United States
Highlights: Conditional cash transfer (CCT) programs, which have been implemented in more than 60 countries, provide cash payments to poor families contingent on their meeting certain conditions such as using preventive healthcare, keeping children enrolled in school,...An exciting new finding in the effort to prevent teen pregnancy (but a replication study is needed)
Highlights: We review a rare teen pregnancy prevention program—Teen Options to Prevent Pregnancy (TOPP)—that has credible evidence of a major effect on pregnancies and births. A recent federally-funded randomized controlled trial found that TOPP reduced the pregnancy...If at first you succeed, try again!
Highlights: We review a randomized controlled trial (RCT) of Honest Opportunity Probation with Enforcement (HOPE), a program for probationers that provides swift and certain sanctions—such as brief jail time—for any probation violation. This was a replication RCT,...Showing 10 of 22 Reviews