Eleven re istered occupational therapists who were considered knowledgeab f e about the model of human occupation served as content validity raters for the Assessment of Occupational Functioning (AOF) (1st rev.) (Brollier&Watts, 1985; Watts, Kiel- hofner, Bauer, Gregory,&Valentine, 1986). The results were tested to determine the amount of agreement between content experts and the authors of the AOF. Overall, the AOF was found to adequately cover the domain of content for the six model of human occupation components.