According to the American Association of University Professors' 2010-2011 salary data, full professors at doctoral institutions earn an average of $127,296; associate professors make $84,686; assistant professors take home $72,893; instructors earn $48,418; and lecturers make $55,520. When combined, full-time faculty members at doctoral institutions earn an average of $92,468 annually, according to the AAUP.