Because there is little empirical research on the effects of protests in animal advocacy, we draw from research on the effects of protests in other social movements. (animalcharityevaluators.org)
A related problem, in regards to principal evaluations, is that very little empirical research is available regarding principal effectiveness. (ajeforum.com)
The K — 12 school sector generates little empirical research of any sort. (educationnext.org)