Dimensions characteristically descriptive of applied behavior analysis over the past 20 years are explored: applied, behavioral, analytic, conceptual, technological, effective, and capable of appropriately generalized outcomes. Effectiveness in the future must take into account cost-benefit ratios, social validity assessments, and the need for…

This commentary finds that the study reported in EC 605 442, which indicated long-term gains for children with autism who experienced intensive behavioral intervention as preschoolers, is reliable, correct, and important. The commentary supports the use of quasi-random assignment to experimental or control group when truly random assignment is not…