In his latest post, Lawrence Haddad talks about impact measurement, among other things
While I welcomed the introduction of RCTs and Systematic Reviews into the development toolbox 4-5 years ago, in my view, their advocates have gone way too far and have overplayed their hand. Over and over I see excellent research being blanked out of decision making because it does not fit the narrow definitions of RCTS and Sys Revs. Bizarrely, senior researchers within funding organisations are advocating these methods in a one-eyed way without themselves ever having done one! I can only hope the pendulum will swing back to the middle–and soon.