Applied Behaviour Analysis (ABA)
Uses principles of learning and behaviour to build skills, reduce challenging behaviours, and improve quality of life through structured, evidence-based teaching strategies.
What Is ABA Therapy?
Applied Behaviour Analysis (ABA) is a scientific approach to understanding and changing behaviour. It uses principles of learning to systematically teach new skills and reduce behaviours that interfere with learning and daily life.
Modern ABA looks very different from the rigid, repetitive drills of decades past. Contemporary ABA is individualized, often play-based and naturalistic, and focused on building meaningful skills that improve quality of life — communication, social skills, self-care, academic skills, and community participation.
ABA programs are designed and supervised by a Board Certified Behaviour Analyst (BCBA) who develops an individualized treatment plan based on a comprehensive assessment. Registered Behaviour Technicians (RBTs) typically deliver the direct therapy.
Who Benefits from ABA Therapy?
autism
The most-researched therapy for autism. Builds communication, social, self-care, and academic skills while addressing challenging behaviours. Early intensive ABA (20-40 hours/week) shows the strongest outcomes.
intellectual disability
Teaches functional skills using structured, systematic approaches. ABA techniques like task analysis and chaining are effective for building daily living skills.
fasd
Addresses challenging behaviours with environmental modifications and teaches replacement skills. Adapted ABA approaches account for executive function and memory difficulties.
down syndrome
Supports skill development through structured teaching and positive reinforcement. Particularly effective for communication and self-care skills.
What to Expect in a Session
First Session
A comprehensive behavioural assessment (4-8 hours over multiple sessions) evaluates skills across all developmental domains using tools like the VB-MAPP or ABLLS-R. This informs the individualized treatment plan.
Ongoing Sessions
Sessions combine structured teaching (discrete trial training) with naturalistic, play-based learning. The therapist follows your child's motivation, creates learning opportunities, and uses positive reinforcement to build skills.
Your Child's Role
Your child engages in activities and learning opportunities throughout the session. Good ABA feels like purposeful play, with the therapist weaving learning into motivating activities.
Caregiver's Role
Parent involvement is critical. Your BCBA should train you in strategies to use at home, help you generalize skills across settings, and involve you in goal-setting and progress reviews.
When to Start
Early Childhood (0-5)
The strongest evidence supports starting early — before age 4 if possible. Early Intensive Behavioural Intervention (EIBI) shows the greatest gains when started between ages 2-4.
School Age (6-17)
ABA continues to be effective for school-age children, typically at lower intensity focusing on social skills, academic support, and managing specific behaviours.
Adults (18+)
Adults benefit from ABA for building independence skills, supported employment, and addressing behaviours that affect quality of life.
General guidance: Start as early as possible for autism, but ABA is beneficial at any age. The intensity should match your child's needs, family capacity, and available funding.
| Item | Range | Details |
|---|---|---|
| Initial Assessment | $1500–$3000 | Comprehensive behavioural assessment (VB-MAPP, ABLLS-R, or similar) |
| Per Session | $50–$80 | 2-6 hours per session (typically 20-40 hours/week for intensive programs) |
| Insurance | Some employer plans cover ABA; provincial autism programs provide funding in most provinces | |
| Tax Credit | Eligible for Medical Expense Tax Credit (METC); ABA therapy costs often qualify for DTC-related claims | |
Money-Saving Tips
- Apply for your province's autism funding program (e.g., Ontario OAP, BC Autism Funding, Alberta FSCD)
- Some ABA providers offer parent-mediated models at lower cost with coaching sessions instead of direct therapy
- Group ABA social skills programs cost significantly less than 1-on-1 intensive ABA
| Province | Status | Program | Details |
|---|---|---|---|
| BC | Partially Funded | Autism Funding | Province provides $22,000/year for children under 6 and $6,000/year for ages 6-18 for autism interventions including ABA.(Under 19)Up to $22,000/year (under 6), $6,000/year (6-18) |
| AB | Partially Funded | FSCD | FSCD provides individualized funding up to approximately $40,000/year for ABA and behavioural services for children with autism.(Under 18)Up to Up to $40,000/year |
| SK | Limited | Autism Individualized Funding | Provides $4,000/year for autism interventions including ABA; significantly lower than other provinces.(Under 18)Up to $4,000/year |
| MB | Partially Funded | Children's DisABILITY Services / St. Amant | ABA services available through St. Amant Centre and Children's DisABILITY Services; Applied Behavioural Analysis program for young children.(Under 18) |
| ON | Partially Funded | Ontario Autism Program (OAP) | Core clinical services provide $20,000-$55,000/year based on needs level; childhood budgets also available for $5,000-$20,000/year; extremely long waitlist.(Under 18)Up to $20,000-$55,000/year |
| QC | Partially Funded | CISSS/CIUSSS - ICI Program | Intensive Behavioural Intervention (ICI) provided through the public system for young children with autism; waitlists can be 1-2 years.(Under 6) |
| NB | Partially Funded | Early Childhood Initiatives / Autism Services | Preschool Autism Program provides ABA-based early intervention; school-age services through education system.(Under 18) |
| NS | Partially Funded | Early Intensive Behavioural Intervention (EIBI) | EIBI program provides intensive ABA for young children with autism; Direct Family Support for school-age children.(Under 6 (EIBI), Under 18 (DFS))Up to Varies by assessed need |
| PE | Partially Funded | Children with Disabilities Program | ABA services funded through the Autism Services program; smaller caseloads mean potentially shorter waits.(Under 18) |
| NL | Partially Funded | Autism Services - Applied Behaviour Analysis | Province funds ABA through the Autism Services program; home-based and centre-based options available.(Under 18) |
| NT | Limited | Supplementary Health Benefits | Very limited ABA availability in the territories; some families access services through medical travel to Alberta. |
| NU | Limited | Supplementary Health Benefits | Minimal local ABA services; most families must travel south for intensive programs; NIHB may cover some costs. |
| YT | Limited | Family Supports for Children with Disabilities | Limited local ABA providers; some funding available through Family Supports for Children with Disabilities program.(Under 18) |
Evidence & Research
ABA has strong evidence as the most-researched intervention for autism spectrum disorder. Multiple systematic reviews and meta-analyses demonstrate significant improvements in cognitive abilities, language, adaptive behaviour, and social skills, particularly with early intensive intervention. It is endorsed by major medical organizations worldwide.
Important Note
ABA has faced criticism from some autistic self-advocates who report negative experiences with historical, rigid ABA practices. Modern ABA has evolved significantly — ethical, contemporary practice is child-led, respects neurodiversity, does not aim to make autistic children 'indistinguishable from peers,' and never uses aversive procedures. When choosing a provider, look for one that prioritizes your child's wellbeing, autonomy, and assent.
Red Flags to Watch For
Be cautious of any provider who:
- Uses punishment, aversive procedures, or withholding of basic needs (food, bathroom, comfort) as part of therapy
- Aims to eliminate all autistic behaviours (stimming, echolalia) rather than building functional skills
- Does not prioritize your child's emotional wellbeing and does not respect their assent (willingness to participate)
- The BCBA does not regularly observe sessions, update the treatment plan, or involve you in decision-making
- Therapists are not properly trained or supervised — ask about BCBA oversight and RBT certification
- Does not measure progress with data or cannot show you evidence that therapy is working
How to Find a Provider
- 1
Apply for your province's autism funding program to access funded ABA services
- 2
Search the Behaviour Analyst Certification Board (BACB) directory at bacb.com for BCBAs in your area
- 3
Contact Autism Canada or your provincial autism society for provider referrals
- 4
Ask your paediatrician or developmental paediatrician for ABA provider recommendations
- 5
Check with your insurance provider about ABA coverage and approved providers
Conditions That Use ABA Therapy
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