this post revisits some issues i have touched on before.
first of all, good find by roving bandit. the gist is that an experimental program undertaken in ‘ideal’ (NGO-run) conditions did not show any effect when the same program was run by the government. oops.
i think this raises several possible questions related to carrying out experiments (i am sure there are more than i cover below):
- before undertaking (getting funding for) an experimental intervention, how clear should we be on who would be sustaining the effort and/or taking it to scale? what kind of agreement would need to be in place? would we have some effect-size threshold that would mean that we would aim for scale and sustainability, below which an idea is scrapped?
- how do we distinguish between proof-of-concept studies and if-this-works-it’s-going-to-scale studies? how many replications of the former would we want before we did the latter?
- how involved should the putative implementer be in the design & conduct of the experiment?
- how much training and capacity building with the future implementer should be built into the experimental process? would we start to consider ethical requirements in this regard (i.e. experimenters have some obligation to train as well, as needed)?
- if something doesn’t work, what responsibility do we have to help enhance the public sector’s (or other implementer’s) capacity? i.e. is the response to a null finding a scrapping of the idea or a re-tooling of the implementer? or something else?
- how much more process evaluation & monitoring should be put in place in ‘in situ’ experiments so that we can learn more about precisely went right and wrong in implementation? how can we encourage the publication and sharing of these results, not just the treatment effect? (i swear i have an ‘in praise of process evaluation’ post coming soon. i have to atone for all the times i have denigrated it.)
- even when a program doesn’t work, how do we make sure that the public sector (or other) implementer doesn’t get blamed for the effort and reward honesty instead of only exciting results?