The purpose of this study was to investigate preliminary intervention effects of the adaptive behavior on the autism intervention program known as the Learning Program for the Development of Children with Autism (LPDCA). The adaptive behavior scores of two groups of students with autism spectrum disorders (ASD) were compared, with one group receiving the LPDCA (n=121) and the other not receiving this intervention (n=119). Results of the study indicated that the students receiving the LPDCA intervention demonstrated statistically significant higher scores in composite adaptive behavior, communication, daily living, and socialization than did the students who did not have the LPDCA intervention program. The implication and limitations of the present study and recommendations for future studies are discussed. (Contains 4 tables and 1 figure.)