<qa>  What is the efficacy of a behavioral parent training program?This study will compare the efficacy of a behavioral parent training program PT aimed specifically at common sleep disturbances compared to parent education PE program focusing on general issues related to autism. In a sample of 40 well characterized young children who meet criteria for an autism spectrum disorder 24-72 months, the investigators will test whether the five session PT program is superior to the PE program in decreasing sleep disturbances. 