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How Much Difference Does an Education Program Make?

Robert E. Slavin | Posted 05.26.2016 | Education
Robert E. Slavin

When you use Consumer Reports car repair ratings to choose a reliable car, you are doing something a lot like what evidence-based reform in education ...

The Platinum Standard

Jason Saul | Posted 05.15.2016 | Impact
Jason Saul

Many consider randomized control trials, or RCTs, to be the "gold standard" for evidence. Randomization provides a high degree of proof for a very narrow set of facts: a particular program, under a particular set of conditions, for a particular population of people, at a particular time, made a difference.

Is All That Glitters Gold-Standard?

Robert E. Slavin | Posted 03.31.2016 | Education
Robert E. Slavin

In the world of experimental design, studies in which students, classes, or schools are assigned at random to experimental or control treatments (rand...

The Randomized Trial Fantasy: How We Know What We Know

David Katz, M.D. | Posted 01.22.2016 | Healthy Living
David Katz, M.D.

I suppose I might be more expert in randomized controlled trials if I had ever had the actual opportunity to fetch a pail of water without one when my...

The Crisis of Confidence in Medical Research

Allen Frances | Posted 03.14.2015 | Science
Allen Frances

It's been many years since I have trusted anything I read in a medical or psychiatric journal. There is an enterprise wide positive bias; findings never seem to replicate; benefits are hyped; harms are hidden.

Impact Measurement : The Faultlines

Lutfey Siddiqi | Posted 01.23.2014 | Impact
Lutfey Siddiqi

It is argued that the active pursuit of output data may distract or detract a social enterprise from its impact objectives. It is also argued that impact accounting imposes a compliance burden that acts as unnecessary overhead.