In the first 90 days of ABA therapy, most children focus on assessment, relationship-building, and creating an individualized treatment plan. This early phase is designed to understand your child’s strengths, needs, and motivators, then turn that information into clear goals and day-to-day therapy routines. Parents can expect regular communication, data-based progress tracking, and practical coaching so skills carry over into real life.
- The first 90 days prioritize assessment, rapport, and planning, not rushing progress.
- Sessions start gently, then become more structured as your child adjusts.
- Goals are measurable, reviewed often, and refined based on data.
- Parent coaching helps build consistency at home, school, and the community.
What ABA Therapy Is and Why the First 90 Days Matter
ABA therapy (Applied Behavior Analysis) is an evidence-based approach that teaches skills and reduces barriers to learning by using the science of behavior and positive reinforcement. In the first three months, your team builds the foundation that guides everything that comes next, including which goals matter most and how therapy will fit into your family’s routines.
If you are new to ABA therapy, it helps to think of the first 90 days as the setup period where the clinical team learns what works for your child and how to support meaningful progress.
Weeks 1–2: Intake, Onboarding, and Family Alignment
The first step is usually an intake that gathers information about your child and your priorities. This phase helps the provider understand your child’s daily life, not just what happens during sessions.
What families typically discuss during onboarding
- Daily routines, sleep, meals, and transitions
- Communication style, play skills, and social interaction
- Behavior concerns, patterns, and likely triggers
- Strengths, interests, and preferred activities
- Family goals, values, and cultural considerations
Many families also use this time to confirm scheduling, service locations, and how often they will receive updates.
Weeks 2–4: Comprehensive Assessment and Observation
A formal assessment establishes a baseline for skills and behaviors. A Board Certified Behavior Analyst (BCBA) may observe your child across settings and collect data to understand what supports learning best.
Areas commonly assessed
- Communication and language development
- Social interaction, play, and joint attention
- Daily living skills like dressing, hygiene, and feeding routines
- Learning readiness, attention, and following directions
- Challenging behaviors and the function they serve
When needed, this assessment also informs a plan for reducing behaviors that interfere with learning or safety using the least intrusive, most supportive strategies.
Weeks 4–6: Building a Treatment Plan That Fits Your Child
After assessment, the team develops a personalized plan with goals and teaching strategies. Parents are typically involved in reviewing goals to ensure they are realistic, meaningful, and aligned with family priorities.
What a strong ABA treatment plan includes
- Specific goals written in measurable terms
- Short-term targets that build toward long-term outcomes
- Teaching strategies tailored to your child’s learning style
- Reinforcement methods based on your child’s motivators
- Plans for caregiver coaching and home practice
Goals in early months often focus on foundational skills like functional communication, learning readiness, tolerance for routines, and early social engagement.
Weeks 1–6: Rapport Building Is Progress
Early sessions often include pairing the therapist with positive experiences. This can look like play, shared activities, and following your child’s interests. It is not “wasting time.” It is how trust is built.
Examples of rapport-building outcomes you might notice
- Your child willingly enters the therapy space
- Improved tolerance for short demands
- More frequent positive interactions with staff
- Better engagement during play and routines
This foundation supports later skill acquisition and more complex learning goals such as building new communication and daily living skills.
What Early ABA Sessions Usually Look Like
In the beginning, sessions are often shorter or less demanding. Structure increases as your child becomes comfortable and the team identifies effective reinforcers and prompting levels.
Common elements in early sessions
- Play-based interaction to identify motivators
- Simple instructions to check understanding
- Positive reinforcement to build participation
- Gentle prompting to set your child up for success
- Data collection to measure responses and patterns
If your child struggles with change, the team may also work on tolerance for transitions and routines so sessions feel predictable and manageable.
Data Collection and How Progress Is Measured
ABA is data-driven. That means your team tracks behavior and skill performance in observable terms. Data allows decisions to be based on patterns, not assumptions.
What data tracking often helps the team answer
- Which teaching method works best for your child
- Whether a skill is improving, stalled, or needs adjustment
- What triggers a behavior and what prevents it
- Whether skills generalize to different people and settings
During the first 90 days, you should expect regular check-ins about what the data shows and what changes the team is making based on results.
Parent Involvement: What Your Role Usually Looks Like
Parents are not expected to become therapists. Your role is to partner with the team so strategies are consistent and practical in real life.
Many families receive coaching through parent training, which focuses on manageable, realistic steps that fit your home routine.
Skills commonly covered in parent coaching
- Understanding why a behavior happens and what it communicates
- Using reinforcement in daily routines
- Supporting communication, including nonverbal communication
- Responding consistently to challenging behaviors
- Helping skills show up outside therapy sessions
Common Concerns Parents Have in the First 90 Days
It is normal to feel uncertain early on. Many parents worry about speed of progress, therapy intensity, and how to handle behavior at home.
Realistic answers to common questions
- “Why does progress seem slow?” Early weeks often focus on baseline data, rapport, and routines.
- “What if my child resists?” The team adjusts demands, reinforcement, and pacing to reduce stress and build trust.
- “How often will goals change?” Goals are refined as data clarifies what is working and what needs support.
- “What about behaviors outside sessions?” Coaching helps you use consistent strategies across settings.
Experience-Based Insight: What Families Often Find Most Helpful
In day-to-day ABA work, small wins matter. Families often notice the biggest early improvements in engagement, routine tolerance, and communication attempts. Those early gains create momentum for later goals like independence, social skills, and school readiness.
Clinicians also see faster generalization when caregiver strategies are simple and consistent, such as using the same brief prompts and reinforcement routines across home and community settings.
How the Plan Evolves Through Day 90
The first 90 days are active and flexible. As the team learns more, they refine prompting levels, teaching strategies, and reinforcement schedules. Goals may be added or adjusted as new strengths and needs emerge.
This individualized approach is a defining feature of Applied Behavior Analysis as a clinical model because it emphasizes observable results and ongoing improvement.
Bottom Line
The first 90 days of ABA therapy are about building the foundation. Expect assessment, rapport building, and a clear plan with measurable goals. Progress may start with small changes like improved engagement and routine tolerance. Consistent parent collaboration and data-based decision-making help set the stage for meaningful long-term growth.
Frequently Asked Questions
How many hours of ABA therapy should my child receive in the first 90 days?
Hours vary based on your child’s needs, availability, and clinical recommendations. Some children start with fewer hours to build tolerance and increase gradually. A BCBA typically recommends intensity after assessment, balancing effectiveness with what is realistic for your family’s schedule.
What should I do if my child cries or refuses therapy sessions?
Tell the clinical team right away. Early resistance often signals that sessions need more rapport-building, better reinforcement, or smaller steps. Effective ABA adapts the environment and expectations so your child can participate successfully without unnecessary stress or pressure.
How will I know if ABA is working during the first three months?
Look for early indicators like improved engagement, smoother routines, more communication attempts, and reduced intensity of challenging behaviors. Your team should also share data trends and explain what they are changing based on results. Clear communication and measurable tracking are key signs of quality care.
Will ABA therapy replace other therapies like speech or occupational therapy?
ABA often works alongside other services. Many children benefit from coordinated care across disciplines, especially for communication, motor skills, and sensory needs. A collaborative approach helps goals align across settings and avoids conflicting strategies, supporting more consistent progress for the child.
How can I support ABA goals at home without feeling overwhelmed?
Start small and focus on one routine at a time, such as mealtime, bedtime, or transitions. Use simple reinforcement, consistent prompts, and clear expectations. Parent coaching should prioritize practical strategies that fit your day, so home practice feels doable and sustainable.
Ready to Talk with AWC Behavioral Health?
If you are considering services, our team can walk you through the process, answer your questions, and discuss goals for your child. Explore our behavioral health services or contact us to schedule a consultation.