County Variation in the Supervision of Registered Behavior Technicians for the Provision of ABA Services in the United States
Half of BCBAs supervise no RBTs and one in four counties has zero qualified ABA staff — check your local workforce map before expanding services.
01Research in Context
What this study did
Yingling et al. (2025) counted how many BCBAs and RBTs work in every U.S. county. They pulled public BACB files and matched each certificant to a county.
They asked one more question: how many BCBAs actually supervise RBTs? The team wanted to see where ABA deserts exist.
What they found
Half of all qualified BCBAs supervise zero RBTs. Another quarter of U.S. counties have no BCBA and no active RBT at all.
In short, large land areas lack anyone who can legally start or keep ABA services running.
How this fits with other research
Tyrer et al. (2009) warned that certification alone would not protect consumers. The new county map proves them right: paper credentials do not guarantee on-the-ground supervisors.
Guinness et al. (2022) showed distance programs graduate the most new BCBAs. Yingling’s data reveal where those graduates do NOT settle — rural counties remain empty.
Walton (2016) described a fast one-year master’s track. The survey implies such small pipelines are too few to fill the 24 % of counties that currently have zero qualified staff.
Why it matters
Before you promise ABA to a new school or clinic, check the county map. If no BCBA lists an address there, you will need to embed a supervisor or use tele-supervision from day one. The data also tell funders and state planners exactly which regions need incentives or licensure laws to draw qualified staff.
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02At a glance
03Original abstract
The implementation of behavior analysis for the provision of autism services frequently entails the close supervision and direction of behavior technicians implementing programs designed and overseen by qualified applied behavior analysis (ABA) providers. To date, there has been no investigation into the geographic distribution of the supervision of ABA services, which has important implications for the implementation of a quality tiered service-delivery model. In this study, we examined county-level distribution of the supervision of ABA services by BCBAs in the U.S. as well as the number of Registered Behavior Technicians (RBTs) with an active credential overseen by BCBAs. The sample included all U.S. counties in 50 states and D.C. (N = 3138). Of all qualified supervisors, one-half were not supervising any RBTs. Most actively supervising BCBAs oversaw 10 or fewer RBTs. Just over half of counties did not have either at least one RBT with an active credential or at least one qualified supervisor; 24.2% did not have a qualified supervisor or an RBT with an active credential. These and other results are discussed in the context of the provision of a tiered service-delivery model of ABA services to children with autism.
Behavior Analysis in Practice, 2025 · doi:10.1007/s40617-024-00996-0