“…Some recent experimental studies in psychology advocate the term "imprecision" or "vagueness" instead of ambiguity (e.g., Budescu, Weinberg, & Wallsten, 1988;Du & Budescu, 2005;Gonzalez-Vallejo, Bonazzi, & Shapiro, 1996;Kuhn & Budescu, 1996). According to this perspective, the imprecise information can be either with respect to the underlying probabilities or the range of possible outcomes (Budescu et al, 2002;Casey & Scholz, 1991;Du & Budescu, 2005;Gonzalez-Vallejo et al, 1996;Ho, Keller, & Keltyka, 2002;Kuhn & Budescu, 1996;Kunreuther, Meszaros, Hogarth, & Spranca, 1995;Schoemaker, 1989). To illustrate the difference between imprecise probabilities versus imprecise outcomes, consider an entrance into a sweepstakes drawing versus a purchase of a 6/49 state lottery ticket.…”