ABSTRACT
In a classification design, a number of stimuli are sorted into a smaller or equal number of categories. When introducing this type of experiment in chapter 5, we restricted the discussion to sets of stimuli that differed on a single internal dimension, but we now abandon that limitation and examine paradigms in which the stimuli lead to representations that differ multidimensionally. Proceeding gently, we consider apparently simple problems in which just three or four stimuli must be classified into only two categories. This project turns out to be sufficiently challenging for one chapter.
