At the Mind the Gap conference in Cuernavaca, Mexico, the main theme was how to affect policy with hard evidence. Some would argue that this is the essence of why we evaluate programs. We want to know what works and why so we can improve upon what we have, replicate what works or move away from what does not. Although it seems reasonable, policy-making is about politics … [Read more...] about Policy, politics and evidence: why does it matter?