Virtually all psychologists were Psychology majors in college. However, this is not absolutely necessary and many psychologists majored in other fields, such as Biology, Sociology and other social sciences. While in college, psychologists usually engage in two activities that enhance their education and likelihood of admission to graduate school. They usually work as a research assistant for faculty members and they work in clinical settings. The clinical work may be a part-time job or part of an internship in the undergraduate program.
Psychologists then apply to graduate school.
The path to graduate school varies from person to person. Most psychologists apply to graduate school during the senior year of college. Many do not get into a graduate program from this application. A large number of psychologists apply after working in the field with a Bachelor's degree. Some may apply to and attend a Masters program, work for a few years, then attend a doctoral program.