WOREP, the Wisconsin-Ohio Reference Evaluation Program, was developed by Charles Bunge, University of Wisconsin, and Marjorie Murfin, Ohio State University, in 1983. The prototype was tested by eighteen libraries of varying sizes and located in all regions of the country. Since then, it has been used by more than 125 academic and 85 public libraries. In 2004, WOREP moved to Kent State University where it was administered by Barbara Schloman, Carolyn Radcliff, and Julie Gedeon.
WOREP was discontinued in 2011.
The WOREP survey questions are available for those who wish to create their own reference assessments.