Expert judgment in a heterogeneous task environment

Jennifer Tsai, Alex Kirlik

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Recent times have seen an explosion of research on the intersection between rules, models, heuristics, and ecological task structure. Many groups have worked to connect loose strategies and findings into a more cohesive theory of judgment, specifying the particular ecologies under which various strategies work well or not. However, the majority of this research has been conducted under the assumption that judgment environments are homogeneous in composition. This paper reports an experiment in which the judgment task of interest possesses a heterogeneous structure, with different subsets of the task environment governed by different rules or weighting functions. Results reveal that experts were able to perform the task well by taking advantage of the heterogeneous nature of the task ecology, selectively choosing and adapting their use of strategies according to how well each operates in the different sub-ecologies of the task environment. Implications for understanding and supporting expert judgment in operational contexts are discussed.

Original languageEnglish (US)
Title of host publication53rd Human Factors and Ergonomics Society Annual Meeting 2009, HFES 2009
PublisherHuman Factors an Ergonomics Society Inc.
Number of pages5
ISBN (Print)9781615676231
StatePublished - 2009
Event53rd Human Factors and Ergonomics Society Annual Meeting 2009, HFES 2009 - San Antonio, TX, United States
Duration: Oct 19 2009Oct 23 2009

Publication series

NameProceedings of the Human Factors and Ergonomics Society
ISSN (Print)1071-1813


Other53rd Human Factors and Ergonomics Society Annual Meeting 2009, HFES 2009
Country/TerritoryUnited States
CitySan Antonio, TX

ASJC Scopus subject areas

  • Human Factors and Ergonomics


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