Two studies were conducted to assess and train clinical interviewing skills. In Experiment 1, eight university practicum students ("therapists") and either role played or volunteer "clients" were audiotaped during simulated interviews. Following the collection of baseline data on both therapist and client responses, training was provided by way of written materials, classroom instruction and practice, and quizzes. Results of a multiple baseline design across subjects showed improvements in therapists' interviewing skills and subsequent increases in client responding. Experiment 2 replicated and extended the research to a hospital outpatient clinic, in which therapists interviewed the parents of children with behavior problems. In addition, four months following the completion of Experiment 2, follow-up data collected during a maintenance condition showed continued high levels of therapist and client behavior. Finally, a panel of expert peers indicated that each response category was judged highly relevant to the behavioral assessment process.DESCRIPTORS: behavioral assessment, interviewing, staff trainingThe development and implementation of behavioral treatment programs are often preceded by interviews with clients, their relatives, and other mediators, in which information is sought regarding the focus and goals of intervention. Such assessment interviews are especially common in clinical settings, where the initial contact between therapist and client usually involves some verbal interaction. Although the information obtained in an interview may be of uncertain reliability, it often serves as the basis for further, more systematic inquiry