Weitzer joined Wesleyan's staff as assistant provost in 1991. He had been assistant vice chancellor for student affairs at the University of Massachusetts, Amherst. He earned his Ph.D. in environmental psychology there in 1981. Launched in 1952 by Wesleyan University, the GLS program is the oldest graduate program in the country specifically designed for adult students in the liberal arts, inventing and awarding the degree of Master of Arts in Liberal Studies, and also the Certificate of Advanced Study. The program serves educators from public and private institutions, and adult students from a wide variety of backgrounds and professions.
Courses are open to anyone with a bachelor's degree.