The need for evidence-based policy-making

I’m a political person but, I hope, I am also a rational individual. So I have my values and principles, but I like to make decisions based on evidence and some of the best evidence comes from trials.

Therefore I was pleased to read this article today which puts the case for evidence-based policy-making in these terms:

“Randomised trials are our best way to find out if something works: by randomly assigning participants to one intervention or another, and measuring the outcome we’re interested in, we exclude all alternative explanations for any difference between the two groups. If you don’t know which of two reasonable interventions is best, and you want to find out, a trial will tell you.”


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