Abstract

A lottery was implemented to encourage the elderly clients of a residential home to use activity materials any rime they wished, independently of staff intervention and the institutional routine of the home. During baseline, there were minima levels of independent use of activity materials by residents. Various conditions were implemented but only the introduction of a pound 20 lottery prize brought about a significant increase in the frequency of independent use of activity materials. A follow-up suggested that the reinforcing properties of the activity materials themselves eventually maintained the target behavior.