Individual versus multidisciplinary team decision-making

Andrew David Aspel, University of Rhode Island


The present study compared individual against multidisciplinary team diagnostic and placement decisions. Specifically, this study examined if teams were more likely than individuals to incorporate relevant base-rate information into their decisions and to ignore irrelevant, or illusory, information (degree of intersubtest scatter). Members of 20 teams were asked to evaluate four case scenarios. Each team consisted of a school psychologist, an administrator, and an educational diagnostician. For two of the cases, base-rate information was manipulated; on the other two cases, intersubtest scatter on the WISC-III was manipulated. Participants evaluated one set of cases as a team, and the other set of cases individually. Individual responses were pooled and compared to team responses. Results indicated that teams were not any more likely than individuals to incorporate relevant information into their diagnostic and placement decisions. Teams were just as likely as individuals, however, to incorporate irrelevant information into their decisions. Clinical and research implications of the results are discussed. ^

Subject Area

Psychology, Clinical

Recommended Citation

Andrew David Aspel, "Individual versus multidisciplinary team decision-making" (1994). Dissertations and Master's Theses (Campus Access). Paper AAI9507055.