Another early program in OBM was initiated at the University of Notre Dame in 1975 with the arrival of Martin Wikoff, the first graduate student in the program. Prior to attending Notre Dame, Wikoff, with University of Washington professors, Bob Kohlenberg (Psychology) and Terrance Mitchell (Foster School of Business) conducted one of the first controlled studies of applied behavior analysis in business; in this case, to improve Grocery Clerk performance. That study was presented at the 1976 MABA Convention in Chicago and the application to business was so novel, the research was assigned to the topic category of "Experimental Living Arrangements" confirming its status as one of the pioneering OBM documented applications.