Understand PBS

Trauma-Informed Behaviour Support

Trauma-informed behaviour support starts from a simple, compassionate idea: that a person's behaviour often makes sense once you understand what they've lived through. Instead of asking 'what's wrong with this person?', it asks 'what has happened to this person, and what might this behaviour be protecting them from?'

Being trauma-informed doesn't mean treating trauma or diagnosing it. That's a different kind of clinical work. It means recognising how common past adversity is, understanding how it can shape behaviour, and making sure the support itself feels safe rather than adding to a person's distress.

Who this is for

Families, NDIS participants, support coordinators, and support workers who want to understand what trauma-informed behaviour support means and how it changes the way support is provided.

Behaviour as an adaptation, not a fault

Experiences like loss, neglect, abuse, medical trauma, or repeated experiences of not being understood can leave a lasting mark on how a person feels safe and how they respond to the world. Behaviours that look puzzling or difficult are often adaptations that once helped someone cope or stay safe.

A trauma-informed lens treats these behaviours with curiosity and compassion. A reaction that seems out of proportion to a situation may make complete sense in the context of someone's history. Understanding that doesn't excuse harm, but it changes what we do about it, shifting from controlling a behaviour to addressing the need and the sense of threat underneath it.

The principles that guide the work

Trauma-informed practice is usually described through a set of guiding principles. They aren't a checklist so much as a way of relating to a person that runs through everything, from the first conversation to the way a strategy is written.

  • Safety: helping a person feel safe, physically and emotionally, not just appear calm.
  • Trust: being reliable, consistent, and transparent so trust can grow over time.
  • Choice: offering real options and respecting a person's right to say no.
  • Collaboration: working with the person and their team rather than doing things to them.
  • Empowerment: building on strengths and supporting a person's voice and control over their own life.

How it shapes assessment

Being trauma-informed changes how we gather information, not only what we conclude. It means going gently, paying attention to a person's history and what helps them feel safe, and being careful not to ask people to relive distressing experiences just to complete an assessment.

It also means looking wider than the behaviour itself. A functional assessment considers what happens before and after a behaviour, but a trauma-informed assessment also asks what a person's environment, relationships, and past may be signalling to their nervous system, and which everyday situations might feel threatening even when they're objectively safe.

How it shapes strategies

Trauma-informed strategies prioritise predictability, connection, and felt safety. That can mean building routines a person can rely on, giving genuine choices, reducing situations that trigger a threat response, and coaching the people around them to respond in calm, consistent, non-punitive ways.

It also shapes how we respond when things are hard. Rather than reacting in ways that may feel frightening or shaming, trauma-informed response strategies aim to keep everyone safe while preserving the relationship and the person's dignity. The goal is support that helps a person feel safer over time, which can make behaviours of concern less necessary.

Trauma-informed, alongside positive behaviour support

Trauma-informed practice and positive behaviour support fit naturally together. Both start from the belief that behaviour means something, both are person-centred, and both aim to improve quality of life rather than simply manage incidents.

At PBSG, we weave a trauma-informed approach through our assessments, plans, and coaching. We can't promise particular outcomes, and we're careful not to overstep into treating trauma, but we aim to make sure the support itself is safe, respectful, and built around the whole person and their story.

Frequently asked questions

What does trauma-informed behaviour support mean?

It means recognising that past adversity is common and can shape behaviour, and making sure support feels safe rather than adding to a person's distress. It's guided by principles of safety, trust, choice, collaboration, and empowerment. Being trauma-informed is different from diagnosing or treating trauma, which is separate clinical work.

Do you need a history of trauma for this approach to help?

Not necessarily. A trauma-informed approach assumes that adversity is common and that we may not know everything about a person's history, so it builds in safety, choice, and respect for everyone. It's a respectful way to work regardless of what is or isn't known about someone's past.

How is trauma-informed practice different from regular behaviour support?

It's less a separate method than a lens that runs through good behaviour support. It pays particular attention to felt safety, to behaviour as an adaptation to past experiences, and to avoiding approaches that might re-traumatise a person, including how assessments are carried out.

Does being trauma-informed mean you treat trauma?

No. Being trauma-informed means recognising how trauma can affect behaviour and making support safe and respectful. Treating or diagnosing trauma is separate clinical work. Where that kind of support is needed, a practitioner can help connect a person with appropriate services.

Sources

Last reviewed June 2026.

Want support that understands the whole story?

If you're looking for behaviour support that takes a person's history and sense of safety seriously, we'd be glad to talk it through. Tell us what's happening and we'll explain how we work, plainly and without pressure.

We aim to respond within about one business day.