The Communication Role Assessment Measure (CRAM) is an application of role theory to organizational communication. Using a communication-based taxonomy, CRAM was developed to integrate previous research in the field and to assess the following elements: the amount of time spent by members of an organization in selected communication roles; their self-perceptions of their involvement, skill, trust, and comfort while in each communication role; and the amount of time spent interacting with superiors, subordinates, and peers. The six classes of communication roles in the CRAM taxonomy are source/receiver, work/person, information exchange, solution seeking, negotiation, and behavior change. Data on the reliability and validity of the CRAM taxonomy were collected in a study of National Guard personnel, extending the schema to assess predictive validity for management style preference. The results showed reliability estimates ranging from .45 to .997, with validity of factor structure representations ranging from .57 to .99. Measures of predictive validity showed that 11 factor variables significantly predicted preference for authoritarian management style, while 12 factor variables significantly predicted preference for interpersonal relations-oriented management style. (Author/RL)