What we conclude from the research on categorization is that the approach to categorization works best for small categories (e. g., U. S. Presidents) whereas the approach works best for larger categories (e. g., Mammals).

exemplar, prototype

Explanation:

What we conclude from the research on categorization is that the exemplar approach to categorization works best for small categories (e.g., U.S. Presidents) whereas the prototype approach works best for larger categories (e.g., Mammals).

tbh idk same thing here