Knowledge restructuring refers to changes in the strategy with which people solve a given problem. Two types of knowledge restructuring are supported by existing category learning models. The first is a relearning process, which involves incremental updating of knowledge as learning progresses. The second is a recoordination process, which…

Five experiments involving 173 college students show that people frequently do not apply the category inclusion rule when evaluating categorical arguments involving natural categories and a single nonexplainable predicate. Judgments tended to be proportional to the similarity between premise and conclusion categories. (SLD)