ambiguity aversion

Medical treatment decisions are often rife with ambiguity. Exact probabilities for things like side effects or treatment success rates are frequently unknown. But why is this important? Because decision making research has shown that ambiguity can systematically alter the choices people make. We investigated how providing different explanations for the ambiguity in a treatment decision context affected willingness to adopt a treatment with an ambiguously described success rate. When the explanations involved elements that the person was knowledgeable about or could control, people were more interested in an ambiguous treatment.