According to Dr. Seuss, the Star-Belly Sneetches only want to identify with other Star-Belly Sneetches. They consider themselves as being different from Plain-Belly Sneetches and do not identify with them. What principle of prejudice theory is Dr. Seuss illustrating
A social category is a collection of people who do not interact but who share similar characteristics. For example, women, men, the elderly, and high school students all constitute social categories.