The Landscape of Autism Interventions
Parents of newly diagnosed children often find themselves navigating a crowded landscape of treatment options. ABA, DIR/Floortime, RDI, social skills groups, play therapy, PECS, ESDM — the acronyms multiply, the claims vary, and the stakes are high. Understanding how these approaches differ helps families make informed decisions.
Applied Behavior Analysis (ABA)
ABA is the most comprehensively studied intervention for autism. It uses principles of behavior — reinforcement, prompting, shaping — to systematically teach skills and reduce challenging behaviors. Modern ABA has moved away from the rigid, discrete trial formats of the 1970s toward naturalistic, play-based approaches that are more engaging and more ecological.
Best for: Building foundational communication, reducing challenging behavior, developing self-care and academic readiness skills, and achieving goals that require systematic, data-driven instruction.
DIR/Floortime
Developed by Dr. Stanley Greenspan, DIR/Floortime focuses on emotional and relational development. The therapist or parent follows the child's lead in play, joining and expanding their interests to build engagement, communication, and reasoning.
Best for: Building emotional connection, joint attention, and intrinsic motivation — particularly in children whose challenges are primarily relational rather than behavioral.
Relationship Development Intervention (RDI)
RDI focuses on building dynamic intelligence — the ability to adapt to novel situations and read social context. It is delivered primarily through parent coaching rather than direct therapy.
Best for: Families who want to be the primary agents of their child's social development and are willing to invest heavily in learning the approach themselves.
What the Research Shows
Independent reviews of the autism intervention literature consistently find ABA has the strongest and most extensive evidence base. Other approaches have preliminary or emerging evidence for specific outcomes. This does not mean other approaches have no value — but families should understand the distinction between "promising" and "proven."
At PBS Midwest, our programming is ABA-based, but we collaborate readily with SLPs, OTs, and other providers using complementary approaches.