“…Campbell, 1952;Cassileth, 1969;Datel, 1970;Datel & Legters, 1971;DeLeo, 1972;Dockstader, Nebeker, Nocella, & Shumate, 1980;Dockstader, Nebeker, & Shumate, 1978;Evans, 1970;Galbraith & Cummings, 1967;Gavin, 1970;Graen, 1969;Guzzo, 1979;Hackman & Porter, 1968;Jorgenson, Dunnette, & Pritchard, 1973;Korman, Glickman, & Frey, 1981;Lawler, 1964;Lawler & Porter, 1967;Opsahl & Dunnette, 1966;Porter & Lawler, 1968;Pritchard, DeLeo, & von Bergen, 1974;Pritchard & Sanders, 1973;Wood, Hakel, Del Gaizo, & Klimoski, 1975). As with feedback and goal setting, the literature indicates that group-based incentive systems can also be effective (Bullock & Lawler, 1984;Geare, 1976;O'Dell, 1981O'Dell, , 1986Thierry, 1987.…”