Prototype Analysis
are a series of studies in which researchers ask people to list words associated with a particular subject and then rate the most frequently listed words for how central (or prototypical) they are to the subject, for example, if asked to list words associated with fruit, frequently appearing, centrally rated words might include: apple, orange, and banana; whereas, infrequent or non-central words might include: kiwi, star fruit, and kumquat