Occupational therapy helps people achieve independence in their daily lives through a Master's degree program that includes courses in psychology, sociology, science and anatomy. The degree can be obtained at Indiana University Northwest, Purdue Calumet or University of Southern Indiana for around $20,657, and graduates must pass the Certified Occupational Therapy Assistant exam. Occupational therapists use skills like judgment, decision making and active listening to help clients, and earn a median salary of $72,320 annually, with an expected increase of 26% in the field.