The Major Subfields in Psychology Psychologists are drawn to many different subfields in psychology. Here are the percentages of people receiving Ph.D.s in various subfields. Clinical psychology makes up almost half of the doctorates awarded in psychology.
Note: The numbers do not add up to 100% due to rounding.
Note: The numbers do not add up to 100% due to rounding.
Source: 2004 Graduate Study in Psychology. Compiled by APA Research Office.