The construct validity of measures in teaching, research, and service was determined using a multitrait-multimethod matrix. The measures in research (research publications, research grants, research awards, and peer ratings in research) and three of the measures in teaching (student evaluations, teaching awards, and peer ratings in teaching) supported convergent and divergent validity. However, the three-pronged model in academia was not validated, and exploratory factor analysis identified 5 and possibly 6 domains of behavior (research, classroom teaching, writing about teaching, community service, writing about service, and internal service). For one measure, peer ratings, reliability varied across academic areas and was moderately high for only high-confident ratings.