Salon - Over three quarters of college professors are adjunct. Legally, adjunct positions are part-time, at-will employment. Universities pay adjunct professors by the course, anywhere between $1,000 to $5,000. So if a professor teaches three courses in both the fall and spring semesters at a rate of $3000 per course, they’ll make $18,000 dollars. The average full-time barista makes the same yearly wage. However, a full-time adjunct works more than 40 hours a week. They’re not paid for most of those hours.