The Quality Assurance System for Course Units at Instituto Superior Técnico monitors the course units taught at the institution, by involving the entire academic community in the teaching and learning assessment process. Although this mechanism is well established, there are factors which require further study, namely: Are these student ratings stable? What is the relation between student ratings, student grades and subjective assessment of learning?
We find that students' ratings of instruction are stable and much more a function of the perceived quality of teaching than of the student grades, supporting their validity as a quality assurance instrument. Implications of these findings for practical use of student ratings are discussed.
This paper was presented at EQAF and reflects the views of the named authors only.