Effects of Information Source, Pedigree and Reliability on Operators' Utilization of Decision Support Systems
Madhavan, Poornima
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https://hdl.handle.net/2142/82094
Description
Title
Effects of Information Source, Pedigree and Reliability on Operators' Utilization of Decision Support Systems
Author(s)
Madhavan, Poornima
Issue Date
2005
Doctoral Committee Chair(s)
Douglas A. Wiegmann
Department of Study
Psychology
Discipline
Psychology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Psychology, Industrial
Language
eng
Abstract
In Study 2 we examined participants' utilization of and post hoc trust in the above sources of advice and pedigree levels after their objective experience of advisers' diagnostic accuracy (high vs. low) in an airline luggage-screening task. Biases toward automation (observed in Study 1) led to greater dependence on 'novice' automated aids than on 'novice' human advisers. However, biases in favor of automation broke down when automated aids believed to be 'experts' generated errors, leading to a significant drop in compliance/reliance on 'expert' automation relative to 'expert' humans. Contrary to the results of Study 1, perceived reliability of advice was significantly influenced by the interaction of source and pedigree, while subjective trust was always higher in automaton than in humans. The results have important implications for the development of theoretical models of operator interaction with decision aids, while providing a reference point for deriving optimal indices of user dependence on decision support systems.
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