A number of factors determine the nature and number of graduate TA and GA positions that are advertised in a given term: program and scheduling requirements, the number of anticipated students in the scheduled offerings, and instructor demand for GAs.
Once positions are advertised, the candidates for the positions are determined in accordance with the provisions of the CUPE Local 5524.01 Collective Agreement. The main factors that determine who is offered a position may include the existence of guaranteed appointments, candidate qualifications and experience, the degree program the candidate is enrolled in, and seniority.