Kenneth R. Hammond’s contributions to the study of human judgment and decision making

Dhami, Mandeep K. and Mumpower, Jeryl L. (2018) Kenneth R. Hammond’s contributions to the study of human judgment and decision making. Judgment and Decision Making, 13 (1). pp. 1-22. ISSN 1930-2975

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Abstract

Kenneth R. Hammond (1917–2015) made several major contributions to the science of human judgment and decision
making. As a student of Egon Brunswik, he kept Brunswik’s legacy alive – advancing his theory of probabilistic functionalism and championing his method of representative design. Hammond pioneered the use of Brunswik’s lens model as a framework for studying how individuals use information from the task environment to make clinical judgments, which was the precursor to much ‘policy capturing’ and ‘judgment analysis’ research. Hammond introduced the lens model equation to the study of judgment processes, and used this to measure the utility of different forms of feedback in multiple-cue probability learning. He extended the scope of analysis to contexts in which individuals interact with one another – introducing the interpersonal learning and interpersonal conflict paradigms. Hammond developed social judgment theory which provided a comprehensive quantitative approach for describing and improving judgment processes. He proposed cognitive continuum theory which states that quasi-rationality is an important middle-ground between intuition and analysis and that cognitive performance is dictated by the match between task properties and mode of cognition. Throughout his career, Hammond moved easily from basic laboratory work to applied settings, where he resolved policy disputes, and in doing so, he pointed to the dichotomy between theories of correspondence and coherence. In this paper, we present Hammond’s legacy to a new generation of judgment and decision making scholars.

Item Type: Article
Research Areas: A. > School of Science and Technology > Psychology
Item ID: 23534
Notes on copyright: Copyright: © 2018. The authors license this article under the terms of the Creative Commons Attribution 3.0 License. http://creativecommons.org/licenses/by/3.0/
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Depositing User: Mandeep Dhami
Date Deposited: 12 Feb 2018 16:59
Last Modified: 03 Apr 2019 04:01
URI: https://eprints.mdx.ac.uk/id/eprint/23534

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