Question

What is a randomized controlled trial?

Answer 1

"A randomized controlled trial (RCT) is an experimental form of impact evaluation in which the population receiving the programme or policy intervention is chosen at random from the eligible population, and a control group is also chosen at random from the same eligible population."

Explanation:

Answer 2

A randomized controlled trial is a kind of scientific experiment and it try's to reduce the certain sources of bias when testing the effectiveness of new treatments.