Generalized effects of enhanced Milieu teaching.

The primary and generalized effects of Enhanced Milieu Teaching were examined with six preschool children with significant language delays. In a multiple baseline design across children, trainers implemented the naturalistic language intervention during play-based interaction sessions in the children's preschool classrooms. Children systematically increased their use of targeted language skills during the intervention sessions, and these changes were maintained when the treatment was discontinued. Generalized changes in children's communication resulting from the intervention were examined with untrained teachers, peers, and parents. Some generalization to untrained partners was observed for all children. Correlational analyses indicated that greater numbers of child utterances and greater diversity in vocabulary were associated with increased talking and mands for verbalization presented by partners.