Title page for ETD etd-73092339731121

Type of Document Dissertation
Author Hacker, Marla E.
Author's Email Address marla.hacker@orst.edu
URN etd-73092339731121
Title The Effect of Decision Aids on Work Group Performance
Degree PhD
Department Industrial and Systems Engineering
Advisory Committee
Advisor Name Title
Alexander, Larry D.
Cerveny, Janice F.
Koelling, Charles Patrick
Williges, Robert C.
Kleiner, Brian M. Committee Chair
  • work group performance
  • macroergonomics
  • GDSS
  • decision making
  • CSCW
Date of Defense 1997-04-10
Availability unrestricted
Organizations increasingly use work groups to

perform process improvement tasks. Little

research exists about groups assigned

complete tasks such as process improvement

which involves completing all group processes,

such as: generating, selecting, negotiating, and

executing. This research tested the impact of

decision aids on work group processes and

work group performance. Laboratory and field

experiments were performed. Decision aids

were shown to impact work group processes.

Decision aids increased the number of ideas

considered by the work group, increased the

equality of participation in the work group,

decreased the overall level of conversation,

and reduced consensus during evaluation of

sensitive issues. No significant difference was

found between decision aid types and work

group performance. A regression model was

identified which predicts group performance.

Two variables were high predictors of work

group performance: the level of conversation

occurring in the group and the range between

high and low idea contributors. The range

between high and low idea contributors was

correlated with the skill level of participants in

the group.

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