This study represents part of an extended research program designed to explore the various parameters of imaginative play in children and their relationship to the later development of daydreaming and various cognitive skills or personality characteristics. The specific focus of this investigation was on role of adult intervention represented either by an actual teacher working with three and four-year-old children or by variations involving a live model in combination with a television program which placed considerable emphasis on make-believe. Other variables examined included indications of positive emotionality during play, ability to concentrate and carry through a sequence of connected activities, and the likelihood of direct physical assault on other children. Results indicated that children were most influenced when an adult acted as an intermediary while they watched television. Results are discussed in terms of the above mentioned variables. Educational implications are also cited. (Author/SBT)