Compared the effects of play on the psychosocial adjustment of 46 children hospitalized for acute illness, who were placed in one of four groups: therapeutic play, diversionary play, verbal support, and no treatment. Ratings of psychological adjustment included self-report, as well as nurse and parent ratings. Children in the therapeutic play condition evidenced a significant reduction in self-reported hospital fears. Parent ratings were not affected by therapeutic treatments; rather, parents in all four groups rated their children less anxious from pre- to posttesting. Results are discussed in terms of methodological considerations that have affected outcomes in this type of research.