Teaching Assistant 1 (TA1): A graduate student engaged in the primary duty (more than 50% of time) of teaching, instructing or lecturing a class, class section, or laboratory section. This individual is the "teacher of record" for the class/section.

Teaching Assistant 2 (TA2): A graduate student substantially engaged in teaching-related responsibilities. Teaching-related responsibilities can vary but must include some or all of the following: teaching, tutoring, instructing or lecturing a class, class section, or laboratory section (less than 50% of time), assisting faculty member with teaching a class, preparing examinations, proctoring examinations, grading papers, preparing class lectures, and maintaining office hours for assistance to students. This individual is not the "teacher of record" for the class-section.

Research Assistant 1 (RA1): A graduate student engaged in research in the course of obtaining an advanced degree and the research is performed under the supervision of a faculty member in a research environment under an internal or external grant or contract.

Research Assistant 2 (RA2): A graduate student substantially engaged in research activities that do not satisfy the requirements of RA1. Research activities can vary but include some or all of the following: performing data analysis, designing experiments, engaging in literature searches, co-authoring a research paper with a faculty member, and assisting a faculty member in laboratory, survey, and other research.

Graduate Assistant (GA): A graduate student performing duties outside an academic department utilizing knowledge or experience beyond undergraduate academic studies.