not all computational-level models of cog- nition may have a place for Bayesian anal- ysis. Only problems of inductive inference, or problems that contain an inductive com- ponent, are naturally expressed in Bayesian terms. Deductive reasoning, planning, or problem solving, for instance, are not tra- ditionally thought of in this way. However, Bayesian principles are increasingly coming to be seen as relevant to many cognitive ca- pacities, even those not traditionally seen in statistical terms (Anderson, 1990; Oaksford &Chater, 2001), because of the need for people to make inherently underconstrained inferences from impoverished data in an un- certain world