The university has increasingly added more doctoral programs as it has grown from its original mission as a liberal arts undergraduate college into a more broad-based research university. Recently added fields where doctorates are awarded are mathematics, biology, chemistry, applied physics, computer science, applied psychology, engineering & technology management, mechanical engineering, and sociology. Graduate education is now offered in more than 70 master's degree programs, more than 30 graduate certificate programs, and 20 doctoral programs.