The researchers analyzed 28,000 student evaluations of faculty across 46 departments for one academic term. A 27-item instrument on which students rated faculty was used. One global item assessing overall instructor effectiveness was predicted most strongly by three items: namely, students' perception that the instructor was prepared, presented subject matter clearly, and was interesting. The predictors of students, perceiving that they "learned a lot" were the ratings on three items: the instructor was interesting, the course met the objectives, and the instructor was well-prepared. Being prepared and being interesting seem to be critical characteristics for university faculty in the classroom.