<qa>  What is the purpose of the pilot study?H. Analysis: This is a pilot study whose purpose is to get initial safety and efficacy data with aripiprazole in children with autism. We will perform an ANOVA, repeated measures, for CGI severity scores, the CPRS-14 and the CPRS factors. Similar analyses will be performed for safety measures including for weight, prolactin and other laboratory measures, and EKG indices. 