This article reviews the agricultural research evaluation literature in an effort to assess the extent of coverage in this area. Coverage breakdowns with respect to evaluation approaches, types of research, and products and production processes are presented. Results suggest that there has been limited coverage of research undertaken in…

Evaluation Research Society members (n=160) assessed the attributes of research that produce credibility. The study focused on the acceptability of no-difference findings. Randomization, statistical power, number of measures reported, and equivalent groups were tested to determine their influence on acceptability of both no-difference and…