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randomized controlled trials

Can monitoring teachers and students – with no incentive or punishment attached -- improve test scores? Yes.

David Evans's picture
Consider two challenges in global education development:
  1. Effective adult education is difficult to accomplish all over the world.
  2. Quality of education is a problem across many countries in Africa at all levels (primary, secondary, tertiary, adult).

What the HIV prevention gel trial failure implies for trials in economics

Berk Ozler's picture

For the World AIDS Day, there is a sign at the World Bank that states that taking ARVs reduces rate of HIV transmission by 96%. If this was last year, a sign somewhere may well have read “A cheap microbicidal gel that women can use up to 12 hours before sexual intercourse reduces HIV infection risk by more than half – when used consistently.” Well, sadly, it turns out, so much for that.