Using Information Display Characteristics to Provide Decision Guidance in a Choice Task under Conditions of Strict Uncertainty
This paper investigates the effects of two display characteristics on decisions in a preferential choice task under conditions of strict uncertainty. Participants receiving information in tabular format (n = 83) made fewer compensatory choices, more maximin choices, and selected dominated alternatives more often when outcome distributions were described in terms of a midpoint and variability rather than minimum and maximum values. In contrast, participants given data in a graphical format (n = 80) made more compensatory choices with midpoint-variability than with min-max graphs. Participants given information in graphical format selected fewer dominated alternatives than did participants who received the same information in tabular format. These findings have important policy implications. While it may be desirable to use display characteristics to influence employees to make decisions consistent with organizational policies, the desirability of providing such “persuasive” decision guidance is problematic in settings where the information provider and the decision maker are independent parties to an economic exchange.