The Centers for Disease Control and Prevention released statistics this month suggesting that many states have a long way to go when it comes to promoting greater use of the therapy, which largely relies on teaching parents to reinforce positive behavior while avoiding confrontations. In 10 states, fewer than half of preschoolers in Medicaid with ADHD were receiving psychological counseling, according to the CDC data. Among children ages 2 through 5 with private insurance, the numbers were even worse: In 26 states, fewer than half of those kids with ADHD were receiving behavioral therapy.