This is a complicated question to answer, and necessarily involves many other frequently asked questions. ABA may appear expensive at first glance, but one should make fair comparisons of the costs of ABA to those of other approaches. It has been shown that early and intensive behavioral therapy/treatment is effective in both improving skills and in reducing and eliminating problem behavior. When ABA is performed correctly and effectively, ABA is not needed for an extended period of time. When comparing costs for helping language development, one must look at effectiveness, and how long treatment is continued. Overall, ABA may actually be less expensive in most cases, and involve more effective therapy.