Schools offer several types of psychology degree programs that vary in length, such as associate's of science (AOS), bachelor's (B.A.) and master's (M.A.). Postgraduate programs include doctor of philosophy (Ph.D.) and doctor of psychology (Psy.D.).
The length of study correlates with the type of degree. Associate's degrees typically require two years of study, and bachelor of arts programs last four years. A postgraduate degree, such as a master's, takes an additional two years of study after the successful completion of four years of undergraduate work. Doctoral programs require an additional four to six years of work after undergraduate studies.
Junior and community colleges offer two-year psychology programs culminating in the receipt of an associate's degree, and most four-year universities have bachelor's of art programs in psychology. Many colleges that offer four-year degrees also have postgraduate psychology programs.