What is the basis for identifying members of a category using the prototypal approach found in the DSM-IV-TR diagnostic system?

Question

Quizplus · Accepted Answer

The prototypal approach in the DSM-IV-TR is based on the idea that members of a category will share some, but not necessarily all, of the same symptoms. Each category has a prototypical example that represents the most typical and essential features of the disorder, but individuals may still meet criteria for the disorder even if they do not exhibit every symptom.

What Is the Basis for Identifying Members of a Category