Although many comparative studies have shown that early and intensive ABA is the most effective approach, school districts have been slow to adopt ABA as their primary approach. Most of the justifiable reasons that school districts use other approaches relate to financial concerns. Most teachers, assistants, speech therapists, and other people in the educational field are not trained in applied behavior analysis, and therefore require training and subsequent supervision. This training and supervision requires money which most districts are not in a position to budget. In addition to financial concerns, there are many myths about behavioral therapy which continue to impede its acceptance among those who are uninformed (or, more often, misinformed) about what ABA is. Only through dedicated, persistent advocacy on the part of educators, parents, and behavior analysts will state and local administrators realize that ABA is in the best interests of the children, and in the long run will require less money than ineffective approaches.