Quality and Acceptance of an Evaluative Task: The Effects of Four Group Decision-Making Formats

Abstract

The present study compared the quality and the acceptance of group decisions on an evaluative problem (NASA Lost on the Moon Exercise). Four decision-making formats were employed: interacting, consensus, the nominal group techinique (NGT), and the Delphi technique. No idiosyncratic modifications were made in any of the formats. The results indicated that the Delphi groups produced the highest quality decisions followed by those of consensus, interacting, and NGT groups. The decisions of the consensus groups had a higher level of acceptance than did those of the other three formats, which did not differ in terms of acceptance. Predictions based on past studies using unmodified decision-making techiques were consistently supported.

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References

Carr, D.F. , Green, T.B. , & Hughes, R.E. (1974). A comparison of interacting, nominal, pooled and brainstorming groups in the barrier identification phase of the problem solving process In L. R. Trueblood (Ed.), Proceedings , Southwest Division, Academy of Management , New Orleans, 200-204.

Chung, K.H. , & Ferris, M.J. (1971). An inquiry of the nominal group process Academy of Management Journal, 14, 520-524.

Dalkey, N.C. (1968). Experiment in group prediction Santa Monica, California: RAND Corporation.

Dalkey, N.C. (1969). The Delphi method: an experimental study of group opinion Santa Monica, CA: RAND Corporation.

Dalkey, N.C. , & Helmer, O. (1963). An experimental application of the Delphi method to the use of experts Management Science , 9, 458-467.

Green, S.G. , & Taber, T.D. (1980). The effects of three decision schemes on decision group process Organizational Behavior and Human Performance , 25, 97-106.

Gustafson, D.H. , Shulka, R.K. , Delbecq, A.L. , & Walster, G.W. (1973). A comparative study of differences in subjective likelihood estimates made by individuals, interacting groups, Delphi groups, and nominal groups Organizational Behavior and Human Performance , 9, 280-291.

Hall, J. , & Watson, W.H. (1970). The effects of a normative interaction on group decision-making performance Human Relations , 23, 299-317.

Herbert, T.T. , & Yost, E.B. (1979). A comparison of decision quality under nominal and interacting consensus group formats: The case of the structured problem Decision Sciences, 10, 358-370.

10.

Holloman, C.R. & Hendrick, H.W. (1971). Problem solving in different sized groups Personnel Psychology, 24, 489-500.

11.

Lane, I.M. , Mathews, R.C. , & Buco, S.M. (1981). Toward developing an unbiased scoring algorithm for "NASA" and similar ranking tasks Group and Organizational Studies, 6, 235-243.

12.

Lane, I.M. , Mathews, R.C. , Chaney, C.M. , Erffmeyer, R.C. , Reber, R.A. , & Teddlie, C.G. (1982). Making the goals of acceptance and quality explicit: Effects on group decisions Small Group Behavior, 13, 532-554.

13.

Maier, N.R.F. (1952). Principles of human relations New York: Wiley.

14.

Maier, N.R.F. (1963). Problem-solving discussions and conferences: Leadership methods and skills New York: McGraw-Hill .

15.

Maier, N.R.F. (1967). Assets and liabilities in group problem solving: The need for an integrative function Psychological Review , 74, 230-249.

16.

Maier, N.R.F. , & Hoffman, L.R. (1964). Types of problems confronting managers Personnel Psychology, 17, 261-269.

17.

Miner, F.C., Jr. (1979). A comparative analysis of three diverse group decision-making approaches Academy of Management Journal , 22, 81-93.

18.

Nemiroff, R.M. , & King D.D. (1975). Group decision-making as influenced by consensus and self orientation Human Relations, 28, 1-21.

19.

Nemiroff, R.M. , Pasmore, W.A. , & Ford, D.L., Jr. (1976). The effects of two normative structural interventions on established and ad hoc groups: Implications for improving decision making effectiveness Decision Sciences , 7, 841-855.

20.

Newstrom, J.W. (1972). The assessment of quality and acceptance dimensions of managerial problems Personnel Psychology , 25, 469-481.

21.

Stephenson, B.Y. , Michaelsen, L.K. , & Franklin, S.G. (1982). An empirical test of the nominal group technique in state solar energy planning Group and Organization Studies, 7, 320-334.

22.

Stumpf, S.A. , Freedman, R.A. , & Zand, D.E. (1979). Judgmental decisions: A study of interactions among group membership, group functioning, and the decision situation Academy of Management Journal, 22, 765-782.

23.

Tjovold, P. , & Field, R.H.G. (1983). Effects of social context on consensus and majority vote decision making Academy of Management Journal , 26, 500-506.

24.

Van de Ven A.H. (1974). Group decision making and effectiveness: An experimental study Kent, Ohio: Kent State University, CBER Press, College of Business Adminstration.

25.

Van de Ven, A.H. , & Delbecq, A.L. (1971). Nominal versus interacting group processes for committee decision-making effectiveness Academy of Management Journal, 14, 203-212.

26.

Van de Ven, A.H. , & Delbecq, A.L. (1974). The effectiveness of nominal, Delphi, and interacting group decision making processes Academy of Management Journal, 17, 605-621.