Progressive ABA vs Positive Behaviour Support (PBS): Understanding the Difference
With the evolution of Progressive ABA, many families now ask:
If ABA is compassionate and person-centred — how is it different from Positive Behaviour Support (PBS)?
While both approaches are grounded in behavioural science and share similar values, they differ in focus, delivery, and the stage of life they most commonly support.
Understanding these differences can help families determine what type of support is most appropriate and when.
Shared Foundations
Both Progressive ABA and PBS:
- Are evidence-based.
- Focus on understanding the function of behaviour.
- Reject punishment and aversive techniques.
- Emphasise dignity and ethical care.
- Value collaboration with families.
- Promote skill development and independence.
However, they are designed for different purposes and often different stages of life.
Progressive ABA: Early Skill Development & Intervention
Progressive ABA is primarily an early intervention model.
It is most commonly delivered to children between the ages of 2 and 12, where structured skill development can significantly influence long-term outcomes.
Progressive ABA focuses on:
- Building communication skills.
- Developing social interaction.
- Strengthening emotional regulation.
- Teaching play skills.
- Increasing independence in daily routines.
Support is delivered through structured, 1:1 sessions that are:
- Play-based.
- Child-led.
- Goal-focused.
- Data-informed.
At this stage of development, children are building foundational skills. Progressive ABA provides intensive, structured opportunities to practise and strengthen those skills in a supportive way.
In simple terms:
Progressive ABA focuses on early skill-building to create strong developmental foundations.
Positive Behaviour Support (PBS): A Lifespan, Systems-Based Approach
Positive Behaviour Support is not limited to early childhood / early intervention support.
PBS supports individuals across the lifespan including:
- Young children.
- Adolescents.
- Adults.
- Individuals in supported accommodation or community settings.
While PBS may include skill development, its primary focus is broader:
- Understanding behaviours of concern.
- Improving overall quality of life.
- Reducing restrictive practices.
- Addressing environmental triggers.
- Supporting families, schools, workplaces, and support teams.
PBS involves:
- Functional Behaviour Assessments.
- Behaviour Support Plans.
- Team training and collaboration.
- Proactive environmental strategies.
- Safety and escalation protocols.
- Ongoing data review.
Rather than delivering intensive teaching sessions, PBS works at a systems level, ensuring the person’s environments are supportive, safe, and responsive to their needs.
In simple terms:
PBS supports the person across their whole life and across all environments.
The Key Differences
1. Stage of Support
Progressive ABA:
Primarily early intervention (ages 2–12), focused on building foundational skills during critical developmental years.
PBS:
Lifespan approach, supporting children, teenagers, and adults where behaviours of concern impact daily life.
2. Primary Focus
Progressive ABA:
Direct skill acquisition through structured sessions.
PBS:
Understanding behaviour, preventing escalation, and improving quality of life across settings.
3. Delivery Model
Progressive ABA:
Therapist-led sessions, often 1:1.
PBS:
Collaborative model involving families, educators, support workers, therapists, and community providers.
4. Scope of Impact
Progressive ABA:
Focuses on strengthening the individual’s developmental skills.
PBS:
Focuses on the individual and their environment: home, school, community, workplace or supported living.
How They Can Complement Each Other
These approaches are not opposites.
In many cases, they work well together at different stages.
For example:
- A young child may receive Progressive ABA to build communication and regulation skills.
- Later, if behaviours of concern emerge across settings, PBS may support the wider team in creating proactive, coordinated strategies.
As individuals grow older, the focus often shifts from intensive teaching sessions to environmental supports, independence, and quality of life which are areas where PBS becomes particularly relevant.
A Values-Based Perspective
Both Progressive ABA and PBS have evolved in response to important conversations around neurodiversity, autonomy, and dignity.
Modern practice recognises:
- Behaviour is communication.
- Compliance is not the goal.
- Emotional regulation matters.
- Quality of life is central.
The difference lies not in compassion but in purpose and stage of support.
Progressive ABA builds foundations early.
PBS supports individuals across their lifespan.
Final Thoughts
There is no “better” approach, only the right approach for the person at that time.
If the goal is early developmental skill-building, Progressive ABA may be appropriate.
If the goal is reducing behaviours of concern, improving safety, coordinating supports across environments, or supporting adolescents and adults, PBS may be the right pathway.
The most effective support is always:
- Individualised.
- Ethical.
- Evidence-based.
- Focused on long-term wellbeing.
When the right support is provided at the right stage, meaningful and sustainable outcomes follow.
Blog Written by Ciana Cripps – Positive Behaviour Support & ABA Therapy Practitioner
ALL Images Courtesy of FREEP!K
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