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Abstract
The purpose of this study is to explore how display design and task complexity influences human decision-making in the context of team decision-making. The decision task is divided into three categories: adding, multiplying, and multiplying first then adding. The display has two formats: graphic and numeric/text. In the light of Wickens proximity compatibility principle and Brunswiks lens model, this study tries to prove (1) that display properties are an essential link between task system and human cognition, and (2) that the size of display effects is moderated by the task complexity. The number of the participants is 251. Results confirm the hypotheses of this study. In addition, display and task complexity interacted with each other and caused different results in the staff and the team leader. Future research on display engineering is discussed.