The doctoral program typically takes five to six years of full-time study. The specialization areas available in the experimental psychology doctoral program are cognition & cognitive neuroscience, human factors, and social psychology. Graduate students in the human factors specialization frequently complete an approved internship, often for one to two semesters, at an appropriate agency (e.g., federal or state agency, consulting company, engineering group, high-tech business, transportation agency, healthcare facility, military base).