The effectiveness of various procedures in maintaining attendance at activities of residents at a geriatric facility was examined. A special, intermittently programmed or delayed consequence for attendance was added to regularly scheduled activities. Attendance at activities with and without the consequence was compared. Later, antecedent events which typically occurred prior to activities were suspended. These antecedent events were then re-instituted one at a time. Attendance at activities with and without antecedents was compared. It was found that the intermittently programmed and delayed consequences had little effect upon attendance. When the typically-occurring antecedent events were removed, attendance dropped markedly. One antecedent, staff encouragement, was more effective than the other two antecedents (calendars of events and announcements). Thus it may be concluded that, to maintain attendance at activities, staff at a geriatric facility should encourage residents to come to activities and offer to bring them; post large, easy to read calendars of events; and each day announce the activities which will be occurring on that day. Further research is needed to assess the effectiveness of intermittently programmed or delayed reinforcing consequences for attendance. (Author)