Contradictory statements have been made about the accuracy of the exemplar theory for categorization when it is compared to prototype theory. For example, one study at Arizona State University concluded that the exemplar theory is most accurate with minimal category experience and as experience is developed the prototype theory is more accurate.[3] Another study though, shows evidence that the exemplar-based approach is more accurate as you become more familiar with a category because knowledge of the members is greater than that that can be represented by a single prototype. It is clear that there are some situations where the exemplar-based approach is most accurate and others where it may not be the most accurate.[4] This being said, it is evident that the brain naturally uses a combination of categorization approaches in everyday life.