Research Assistants differ from project assistants only in that both the professor and the assistant work in the same area of research (e.g. on a mutual project). There are no Research Assistantships in the Art History Department.
All assistantships (except Research Assistantships) are governed by the Agreement between the State of Wisconsin and the Teaching Assistants Association. For full details, students should consult the printed Agreement. Students are free and indeed encouraged to apply for Assistantships outside the Art History Department.