Functional Behavioural Assessments: Understanding Behaviour and Building Positive Outcomes
Look past the behaviour to what the person needs. A functional behavioural assessment finds the triggers, patterns and unmet needs behind behaviour, so support can be personal and positive.
Understanding why a person behaves in a particular way is an important step towards effective, person-centred support. Functional behavioural assessments help identify the factors that influence behaviour, including environmental conditions, communication challenges, unmet needs and everyday experiences. Rather than focusing only on the behaviour itself, this approach explores what may be causing it and what the person might be communicating through their actions.
At CapabilitySS, functional behavioural assessments are an important part of positive behaviour support. They help individuals, families, carers and support teams understand behavioural patterns more clearly and find practical strategies that promote independence, wellbeing, participation and quality of life.
What Are Functional Behavioural Assessments?
Functional behavioural assessments (FBAs) are structured processes used to understand why a particular behaviour occurs and what purpose it may serve for an individual. They examine the circumstances surrounding a behaviour, including what happens before it, how the person responds and what happens afterwards.
Example: A person may become distressed when moving from one activity to another. An FBA may explore whether the transition is unexpected, whether communication is difficult, or whether the person needs extra time to prepare.
The objective is not to label a person as difficult or assume that behaviour is intentional. The assessment aims to understand the individual's needs, experiences and environment so that appropriate support can be developed.
"Every behaviour has a reason. A functional behavioural assessment is how we find it, with the person and not about them."
Why Are Functional Behavioural Assessments Important?
FBAs provide valuable insight into behaviours that affect everyday activities, relationships, communication and participation.
1. Identifying the Reasons Behind Behaviour
Behaviours can serve different functions for different people. Identifying the likely function helps support teams respond effectively instead of relying on assumptions.
Communicating a Need
The behaviour may be the most reliable way the person currently has to tell others what they want or need.
Escaping Overwhelm
It may help the person avoid or leave a situation that feels too demanding, unpredictable or stressful.
Accessing Something Preferred
It may help the person gain an activity, item, attention or interaction that matters to them.
Responding to Sensory Input
It may be a response to sensory discomfort such as noise, light, touch, or a need for sensory input.
2. Understanding Individual Needs
Every person has unique preferences, abilities, communication styles and support requirements. FBAs consider these differences, helping families and practitioners understand what makes a person feel comfortable, engaged and supported.
3. Developing Personalised Support Strategies
Assessment findings inform practical strategies that address the reasons behind behaviour. These may include visual schedules, communication supports, predictable routines, environmental adjustments or teaching alternative skills. The most suitable strategies depend on the person's circumstances and the assessment findings.
4. Promoting Positive Outcomes
When support addresses underlying needs, individuals have more opportunities to communicate effectively, take part in daily activities, build relationships and develop independence. This makes support proactive rather than reactive.
How Does a Functional Behavioural Assessment Work?
An FBA typically involves several steps. The process should suit the person's needs, circumstances, communication preferences and support environment.
- Gathering background information. The practitioner learns about the person's strengths, interests, routines, communication methods, health considerations and support history, through discussions with the individual, family, carers and relevant professionals. The person's preferences and perspective stay central throughout.
- Defining the behaviour clearly. The behaviour is described in observable, specific terms so everyone understands what is being discussed and subjective interpretation is reduced.
- Identifying patterns and triggers. The practitioner looks at what happens before, during and after the behaviour, reviewing routines, environmental conditions, communication demands and changes in activities.
- Analysing possible behavioural functions. The information is reviewed to identify patterns and form evidence-based hypotheses about the behaviour's purpose. Additional assessment or consultation may be used to clarify contributing factors.
- Developing support recommendations. Findings inform individualised recommendations focused on preventing avoidable distress, improving communication, adjusting environmental demands, teaching useful skills and strengthening positive interactions.
- Monitoring progress. Strategies are reviewed over time. Support teams monitor outcomes, gather feedback and adjust the approach when needs or circumstances change.
Describing Behaviour in Observable Terms
| Instead of saying… | An FBA would record… |
|---|---|
| "They are uncooperative" | "Leaves the activity area when a task begins" |
| "They have meltdowns" | "Covers ears and cries for 5 to 10 minutes in loud spaces" |
| "They are attention seeking" | "Calls out repeatedly when a carer turns to another person" |
The ABC Framework
One common approach is the antecedent-behaviour-consequence (ABC) framework, used alongside interviews, observations and structured data collection.
Antecedent
What happens just before: the setting, demand, change or trigger.
Behaviour
What the person does, described in clear, observable terms.
Consequence
What happens straight after, and what the person gains or avoids.
The Role of Functional Behavioural Assessments in Positive Behaviour Support
Positive Behaviour Support (PBS) focuses on improving quality of life, understanding individual needs, developing skills and creating supportive environments. FBAs contribute by explaining why behaviours occur, which then shapes the behaviour support plan.
Finding: Noise causes distress
Support could include access to a quieter space, advance preparation or appropriate communication tools.
Finding: Can't ask for a break
Support could involve teaching an accessible way to request one, such as a card, sign or device.
These approaches address needs and expand the person's options rather than simply trying to suppress behaviour.
Restrictive practices: Any restrictive practices, where relevant, require careful consideration and compliance with applicable legal and regulatory requirements, including NDIS Quality and Safeguards Commission rules.
Who Can Benefit from Functional Behavioural Assessments?
FBAs may be useful for individuals who experience recurring behavioural challenges that affect their daily lives or access to meaningful activities. They may be considered for people who:
- Have difficulty communicating needs, preferences or discomfort
- Experience distress during transitions or changes in routine
- Find certain social, sensory or environmental situations challenging
- Display behaviours that create barriers to participation or relationships
- Need more individualised strategies across home, education, community or support settings
NDIS participants: In Australia, FBAs may form part of behaviour support work for eligible NDIS participants, depending on their needs and circumstances. Assessment and support should be delivered by appropriately qualified professionals within their scope of practice. Learn more about NDIS behaviour support on the Sunshine Coast.
Benefits of Working with CapabilitySS
Choosing the right behaviour support provider helps individuals and their support networks understand behavioural needs and explore practical ways forward. CapabilitySS applies positive behaviour support principles that recognise individual strengths, preferences, communication needs and personal goals.
- Person-centred assessments that inform strategies relevant to everyday situations
- Collaboration with families, carers and other professionals for consistency across environments
- A focus on meaningful participation, practical skills and stronger communication
- Recommendations tailored to the individual, never a one-size-fits-all approach
How to Prepare for a Functional Behavioural Assessment
Individuals and families can make the assessment more useful by sharing relevant information and observations. Before your first appointment, consider noting:
- When the behaviour occurs and what happened just beforehand
- The environment: where, who was present, noise and activity levels
- How the person was communicating, and what followed the behaviour
- The person's preferences, strengths and strategies that already work
- Situations where the behaviour does not occur
- Any recent changes in routine, health or circumstances
Where possible, involve the individual in a way that respects their communication style, autonomy and preferences, and ask the practitioner how findings will be explained and used.
Remember: the goal is collaborative understanding, not blame.
Conclusion
Functional behavioural assessments provide a structured way to understand the factors that influence behaviour and identify opportunities for meaningful support. By examining behavioural patterns, individual needs, communication and environmental conditions, assessments inform practical strategies that promote wellbeing and participation.
CapabilitySS recognises the importance of understanding the person behind the behaviour. With an individualised, positive behaviour support approach, assessment findings help individuals, families and support teams work towards improved communication, greater independence and a better quality of life.
Frequently Asked Questions
A functional behavioural assessment is a structured process used to understand why a behaviour occurs by examining its context, possible triggers, consequences, and the needs it may communicate.
The main purpose is to understand the possible function of behaviour and use that information to develop appropriate, individualised support strategies.
An appropriately qualified behaviour support practitioner or another suitably trained professional may conduct an assessment, depending on the setting, the person's needs, and applicable requirements.
The timeframe varies according to the complexity of the situation, the information required, opportunities for observation, and the individual's circumstances. The practitioner can explain the expected process.
Yes. They may be used within relevant NDIS behaviour support services to understand behaviours of concern and inform individualised behaviour support planning, where appropriate.
Information may include background history, observations, behavioural patterns, environmental factors, communication needs, interviews, and details about what happens before and after the behaviour.
It can help identify unmet needs and inform strategies that support communication, participation, skill development, and wellbeing. Outcomes depend on the individual's circumstances and the effectiveness of the ongoing support.
CapabilitySS can be contacted to discuss its positive behaviour support services and whether an assessment or related support may be suitable for an individual's needs. Call 1800 299 399 to start the conversation.
Talk to CapabilitySS About a Functional Behavioural Assessment
Contact our positive behaviour support team to discuss your circumstances and the support options that may suit you or your family member.
