I’ve spent a lot of time arguing that government should be more evidence based, and that wherever possible, we should do randomised trials to find out which policy intervention works best. We often have no idea whether the things we do in government actually work or not, and achieve their stated goals. This is a disaster.
So, with my grown up hat on, here’s a Cabinet Office paper I co-wrote with some government people on exactly this topic. We explain why randomised trials of policy are so powerful; we explain exactly how to do them; and we explain how to identify a meaningful policy question that can be explored cheaply in a good quality trial. Read the rest of this entry »