Who are better teachers? The effects of tenure-track and part-time faculty on student achievement

Using a random assignment of students to mandatory courses in a Chinese university, we estimated the short- and long-term teacher effects on undergraduate academic performance, with a particular focus on part-time instructors. The findings show that both short- and long-term teacher effects existed. Among four groups of instructors, part-time instructors had the largest positive impact on short- and long-term student academic achievement. In...