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ERIC Number: EJ942105
Record Type: Journal
Publication Date: 2011-Nov
Pages: 22
Abstractor: As Provided
ISSN: ISSN-0271-1214
Randomized, Controlled Trial of the LEAP Model of Early Intervention for Young Children with Autism Spectrum Disorders
Strain, Phillip S.; Bovey, Edward H.
Topics in Early Childhood Special Education, v31 n3 p133-154 Nov 2011
A clustered randomized design was used in which 28 inclusive preschool classrooms were randomly assigned to receive 2 years of training and coaching to fidelity in the LEAP (Learning Experiences and Alternative Program for Preschoolers and Their Parents) preschool model, and 28 inclusive classes were assigned to receive intervention manuals only. In total, 177 intervention classroom children and 117 comparison classroom children participated. Children were similar on all measures at start. After 2 years, experimental class children were found to have made significantly greater improvement than their comparison cohorts on measures of cognitive, language, social, and problem behavior, and autism symptoms. Behavior at entry did not predict outcome nor did family socioeconomic status. The fidelity with which teachers implemented LEAP strategies did predict outcomes. Finally, social validity measurement showed that procedures and outcomes were favorably viewed by intervention class teachers. (Contains 1 figure and 6 tables.)
SAGE Publications and Hammill Institute on Disabilities. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: Early Childhood Education; Preschool Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
IES Funded: Yes
Grant or Contract Numbers: R324E060068
What Works Clearinghouse Reviewed: Meets Evidence Standards without Reservations
IES Cited: ED546791