The Short Answer
The first ABA "session" is typically an intake and assessment — not direct therapy. A BCBA will observe your child, interview you, and gather information to build an individualized treatment plan. Direct therapy sessions usually begin 2–4 weeks later, and early sessions focus on building rapport and establishing baseline skills before moving into structured teaching.
Most families expect the first ABA appointment to look like a therapy session — a therapist working with their child on skills and behaviors. In reality, the first visit is almost always an assessment. Understanding this timeline upfront can save a lot of confusion and frustration.
Before Anything Starts: Intake and Paperwork
After you're matched with an ABA provider, there's an administrative onboarding period. You'll complete intake forms covering your child's medical history, developmental milestones, current behaviors, daily routines, and therapy goals. Most providers also require a copy of your child's autism diagnosis and insurance information before scheduling the assessment.
Some providers have intake coordinators who walk you through this process by phone. Others send everything electronically. Either way, completing paperwork promptly helps avoid delays in getting started.
What to gather before your intake appointment
Bring or send your child's autism evaluation report, school records or IEP if applicable, any previous therapy records, and your insurance card. Having these ready saves time and helps the BCBA build a more complete picture of your child.
The Initial Assessment: What the BCBA Is Looking For
The first formal meeting is called the initial assessment or intake evaluation. It's conducted by the supervising BCBA and typically takes 2–3 hours, sometimes spread over two visits. This is when the BCBA gets to know your child.
During the assessment, the BCBA will:
- Conduct a structured parent interview about your child's strengths, challenges, communication style, and daily routines
- Observe your child directly — often through naturalistic play — to assess language, social, motor, and self-care skills
- Administer standardized skill assessments such as the VB-MAPP, ABLLS-R, or AFLS to understand where your child is developmentally across multiple domains
- Identify problem behaviors and ask questions about their frequency, triggers, and current responses
- Get a clear picture of your family's priorities and what you most want for your child
This information becomes the foundation for your child's individualized treatment plan — the document that guides every session going forward.
After the Assessment: The Treatment Plan Meeting
Within a few weeks of the assessment, your BCBA will present a treatment plan. This is a formal meeting — in person or by video — where they walk you through the goals they've identified, the strategies they plan to use, and the recommended number of therapy hours per week.
You have a right to ask questions, suggest adjustments, and request changes to the plan. A good BCBA will actively want your input, since you know your child better than anyone. You'll be asked to sign off on the plan before direct therapy begins.
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Get Matched NowThe First Direct Therapy Sessions: What They Actually Look Like
Once the treatment plan is approved, your child's Registered Behavior Technician (RBT) will begin direct sessions. The very first sessions are deliberately low-pressure — they're designed to help your child get comfortable with the new person and the new routine before any structured teaching begins.
During these early sessions, the RBT will:
- Build rapport — follow your child's lead in play, learn what motivates them, and establish trust
- Identify reinforcers — figure out which toys, activities, foods, or forms of praise your child responds to most strongly (this becomes the engine of all future learning)
- Establish routines — help your child understand what a session looks and feels like, including how it starts and ends
- Collect baseline data — observe and record how your child currently performs on target skills before formal teaching begins
Early sessions may look like "just playing" from the outside. That's intentional. A strong therapeutic relationship is the most important ingredient for progress in ABA — and it takes time to build.
How Long Are Sessions and How Often Do They Happen?
Session length and frequency depend on your child's treatment plan and insurance authorization. Most children receive anywhere from 10 to 40 hours of direct ABA therapy per week, depending on severity and goals. Individual sessions typically run 2–3 hours for younger children and up to 4–6 hours for more intensive programs.
In home-based ABA, sessions happen in your home with an RBT. In clinic-based ABA, your child attends a therapy center. Some providers offer a combination of both, adding community-based sessions at playgrounds, grocery stores, or schools to generalize skills across settings.
Tip: Ask about the RBT who will be working with your child
Before sessions start, ask your BCBA who your child's primary RBT will be, how much experience they have, and how many hours per week they'll be supervising. Consistency matters — frequent RBT turnover can disrupt progress.
What Parents Do During Sessions
Your role during sessions varies by provider and program. In some home-based programs, you'll be in the same space and the RBT will involve you naturally. In clinic-based programs, parents often wait in a common area or observe through a one-way window.
What doesn't vary is parent training. Good ABA programs include regular parent training sessions — typically at least one hour per week — where your BCBA teaches you the same techniques your child is learning in therapy. This is how skills transfer from the therapy setting into real life at home, in the community, and at school.
A note for anxious parents: It's completely normal for children to cry, protest, or resist at the start of ABA — especially if sessions feel unfamiliar or if your child struggles with transitions. This usually passes within a few weeks as trust builds. If your child's distress persists or seems significant, bring it up directly with your BCBA so they can adjust the approach.
Questions to Ask at Your First Appointment
Walking into the assessment with a few prepared questions can help you make the most of the meeting:
- How many hours of BCBA supervision will my child receive each week?
- How often will the treatment plan be reviewed and updated?
- How will I know if my child is making progress?
- What does parent training look like, and how often does it happen?
- Who should I contact if I have concerns between sessions?
The first few weeks of ABA are as much about building your family's relationship with the provider as they are about your child's progress. A good provider welcomes your questions and keeps you genuinely informed at every step.
