Document Type

Article

Language

eng

Publication Date

9-1-2019

Publisher

Elsevier

Source Publication

Applied Ergonomics

Source ISSN

0003-6870

Abstract

The use of two cusp catastrophe models has been effective for untangling the effects of cognitive workload, fatigue, and other complications on the performance of individuals. This study is the first to use the two models to separate workload and fatigue effects on team performance. In an experiment involving an emergency response simulation, 360 undergraduates were organized into 44 teams. Workload was varied by team size, number of opponents, and time pressure. The cusp models for workload and fatigue were more accurate for describing trends in team performance criteria compared to linear alternatives. Individual differences in elasticity-rigidity were less important than subjective workload and experimental conditions as control variables. Fluid intelligence within the team was an important compensatory ability in the fatigue model. Results further supported the nonlinear paradigm for the assessment of cognitive workload and fatigue and demonstrated its effectiveness for understanding team phenomena.

Comments

Accepted version. Applied Ergonomics, Vol. 79 (September 2019): 152-168. DOI. © 2018 Elsevier Ltd. Used with permission.

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