A model for evaluating the counseling interview is presented. It is felt that this model is both comprehensive and systematic in that it relates the kinds of parameters that appear in the counseling literature to the processes and outcomes of counseling. The three process dimensions that are presented include the client, counselor, and milieu factors. Several research articles which illustrate specific variables in terms of the three process dimensions and their interactions are cited. A categorization of counseling outcome dimensions is provided. The outcome dimensions include affective and cognitive reorganization and behavior change. In order to relate counseling processes to counseling outcomes, a rationale which applies multiple linear regression techniques using process variables to account for variance in specific, counseling outcomes is described. A checklist of process and outcome variables is provided to aid the evaluator in selecting parameters to include in the evaluation of a specified counseling program. (Author)