The aim of this study was to analyse the research findings about effectiveness of the Learning Experiences and Alternative Program for Preschoolers and Their Parents (LEAP) and its components which applied on the children with autistic spectrum disorders (ASD) in early childhood. Studies in the special education literature in order to examine the effectiveness of LEAP research purposes, subjects, and findings were summarized. Summaries are given under the headings which were formed with the basic componets of LEAP. At the end of each part, studies about the headings constrasted with each others and interpreted. As a result, although some of the controversial aspects of the effectiveness of LEAP and its components, experimental studies of the effectiveness of LEAP and its components showed that LEAP and its components are effective application for children with ASD in early childhood.

Autistic spectrum disorders, application of special education in early childhood, learning with experience.