How to Design Effective Interventions in Developing Countries

When you find the result that's the opposite of what you found when what y thought, then, likewise, it makes you think. They often force you to think more deeply about your assumptions about behavior. So in the process, two things happened. Number one is that ye really refined how one has to do this experiment. And we did a lot of learning on the statistics and the practice of experiment,. which is fundamental science, in a way, and old.