Developmental Delay (DD) is an IDEA classification for young children who fail to meet developmental milestones at typical times. Young children with delays in social or emotional development may show deficits in social skills. Noting the importance of early intervention, identifying effective social skills interventions for children aged 3-5 is essential. Kopp et al. (1992) note the differences in social skills between preschoolers with DD and typically developing peers. This study investigated the effects of the Teaching Interaction Procedure on skill acquisition and generalization to a free play activity in the general education classroom. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]