Within international development and elsewhere, organisations are moving towards “evidence-based decision making”, or “data-driven” decision making, as a step towards more responsible and effective development programming. Commitments to these kinds of process are, generally, celebrated as an acknowledgement that development needs to take into account what has come before, and react in an iterative and progressive way.
However, I can’t help but feeling that lauding ‘evidence-based decision making’ without questioning how it is being implemented, is perhaps a little naive, and needs to be more nuanced in order to be truly effective. Essentially, there are two main problems that I see.
Firstly, the assumption that we humans are rational beings, who upon being given new information, will act logically as a result.
Secondly, that “evidence”, or “data”, are essentially “truth”, and that making decisions based upon these is unquestionably a route towards better decision making.


