Higher Education Postgraduate Courses Course Structure The Graduate Diploma of Psychological Science consists of 100 credit points, equally distributed across eight core units. PSY401 Theories of Personality PSY402 Research Design and Statistics PSY403 Social Psychology PSY404 Developmental Psychology PSY405 Cognitive and Behavioural Neuroscience PSY406 Psychopathology PSY407 Psychology in Practice PSY408 Psychology Research Capstone