Most families enter the ABA provider selection process without a clear framework for evaluation. They review websites, call a few agencies, ask about insurance and availability, and make a decision based on proximity, wait time, and first impressions. These are understandable factors — but they are insufficient for evaluating clinical quality.
The five questions below are not asked often enough, but the answers reveal more about the likely quality of your child's ABA program than any amount of marketing copy or facility tours. We are sharing them here because we believe informed families make better decisions — and because the ABA field as a whole benefits from parents who hold providers accountable to clinical standards.
Question 1: How many active clients does my child's BCBA supervise?
This is the single most predictive question you can ask about program quality. A BCBA's caseload determines how much individualized attention your child's program receives. A BCBA with 10 active clients can dedicate approximately twice the clinical time per child compared to one with 20 clients — time spent reviewing data, observing sessions, adjusting programs, and meeting with families.
Industry best practice is a maximum of 10 to 12 active clients per BCBA. If an agency cannot give you a specific number, or if the number is 15 or higher, ask how many supervision hours per month your child's BCBA will personally dedicate to their program. A BCBA with a large caseload can still provide quality care if the agency has a strong supervisory infrastructure — but you need to understand what that looks like specifically for your child.
Be cautious of agencies that frame this question as reflecting distrust or that deflect with generic statements about their supervision model. This is basic clinical information that any quality agency should disclose without hesitation.
Question 2: What assessment tools will you use, and when?
A quality ABA program is built on a comprehensive, individualized assessment — not a standardized intake questionnaire and a default treatment template. Before your child starts therapy, the supervising BCBA should conduct a direct assessment of your child's current skill levels using validated, published instruments.
Ask specifically which tools the agency uses. Standard options include the VB-MAPP, ABLLS-R, AFLS, and PEAK for skills assessment, and a Functional Behavior Assessment (FBA) for children with significant challenging behavior. Ask how long the assessment process takes, whether it involves direct observation of your child in natural settings, and how the results will be communicated to you before the treatment plan is written.
If the agency cannot name the specific assessment instruments they use, or if they propose starting therapy before the assessment is complete, those are meaningful red flags about their clinical rigor.
Question 3: What does caregiver training look like in your program?
Caregiver training is not a supplementary add-on to ABA therapy — it is a clinical requirement. The BACB's professional and ethical compliance code explicitly identifies caregiver training as a core component of behavior analyst practice. Your child's ability to generalize skills learned in therapy to real-life contexts depends on the adults in their life implementing consistent behavioral strategies.
Ask how many hours per month are dedicated to caregiver training, who delivers it, what format it takes, and how it is individualized to the specific skills your child is currently working on.
An agency that describes parent training as quarterly meetings to review progress is not meeting the standard. You should be receiving structured, skills-focused training regularly — at a minimum monthly, and ideally biweekly — that equips you to implement your child's program between therapy sessions.
Question 4: How will you measure and report my child's progress?
Data collection is the defining feature of ABA as a science. Ask how data is collected during sessions, how often the supervising BCBA reviews session data, and what the protocol is when a target is not progressing as expected.
Ask what written reporting you will receive and how often. Standard practice includes monthly progress notes and quarterly or semi-annual comprehensive progress reports. These reports should include graphs of your child's data, a summary of mastered targets, a description of current active targets and their trajectory, and the BCBA's clinical recommendations for the next treatment period.
A BCBA who describes progress in exclusively subjective terms — without being able to point you to specific data trends — is practicing below the standard. You are entitled to objective, graph-based documentation of your child's outcomes.
Question 5: What is your staff turnover rate, and how do you handle therapist transitions?
Therapist turnover is endemic in the ABA industry, driven by demanding work conditions, relatively low wages for RBTs, and high burnout rates. The therapeutic relationship between an RBT and a child is a significant factor in outcomes — and frequent therapist changes disrupt the consistency that ABA depends on. Ask directly: what is your annual RBT turnover rate?
Ask also how therapist transitions are managed. When an RBT leaves, is there a structured overlap period where the outgoing and incoming therapists work together? Is there a formal transition protocol that documents the child's current program, preferred strategies, reinforcer hierarchy, and behavioral considerations for the incoming therapist?
No agency will have zero turnover. But an agency that cannot quantify their turnover, dismisses the question, or has no structured transition protocol is one where your child will likely experience multiple unmanaged therapist changes over the course of their program.
