“…To the extent that classrooms employ cooperative or individualistic reward structures, there will be less focus on ability (Nicholls, in press). Various models of cooperative learning have been developed (e.g., Johnson, Maruyama, Johnson, Nelson, & Skon, 1981;Slavin, 1984Slavin, , 1987, and analyses of the outcomes have been positive, in terms of both the motivational patterns Susan D.Holloway discussed here and more general achievement measures. However, the extent to which programs such as these have actually been implemented in school systems is not clear; naturalistic studies of classroom reward structure are rare (see Lesko, 1986, for an exception).…”