This practicum examined the maintenance in eight emotionally disturbed children (ages 7-13) of three appropriate classroom behaviors taught during a 10-week inpatient psychiatric hospitalization. In the hospital school setting the focus was on: (1) appropriate interactions with teachers; (2) appropriate interactions with peers; and (3) appropriate participation/task related behaviors. Data were obtained from teachers prior to hospital admission, during the hospitalization period, and for the duration of a follow-up study after discharge to the regular school setting. The Classroom Behavior Assessment Instrument was developed and used to rate appropriate classroom behaviors for use in treatment planning in the hospital school, to provide feedback to students and parents, and to monitor behavioral progress. Results indicated significant progress for the three target areas. Extensive appendices include a graphic analysis of student behavioral progress, information on revision and modification of the practicum, recommendations for future study, and letters used during the program. Includes 15 references. (Author/DB)