Functional Behavioral Assessment (FBA)
A process to understand why your child behaves in certain ways. It looks at what happens before and after a behavior to identify triggers and what the child gets from the behavior, so the team can develop better strategies.
Federal rule: 34 CFR § 300.530 — Authority of school personnel
Where FBA shows up in your IEP
An FBA is a report rather than an IEP section, so look in the evaluation file or behind a behavior plan. It should describe the behavior in countable terms, list what tends to happen immediately before it, and name what the behavior appears to get or avoid for your child. A behavior plan with no assessment behind it is a plan built on guesswork.
What to ask at the meeting
- Across how many days and which settings was this behavior actually observed?
- What does the data suggest my child is getting or avoiding here?
- Who spoke with me, and does this report include what I see at home?
Red flags
- The whole report rests on one observation, in one classroom, on one afternoon.
- The function is stated as seeking attention with nothing in the data pointing there.
- A behavior plan is already written and no assessment appears anywhere in the file.
Example
Sofia's shouting clustered between 10:40 and 11:00 nearly every day. The assessment counted incidents across two weeks and found they landed just before independent writing, not during group work. That pointed at the task rather than the audience, so her plan added a break card and a scaffolded opening sentence, and the mid-morning spike flattened.
Common questions
When does the school have to do one?
Discipline is the clearest trigger: when a removal changes placement and the conduct is found to be a manifestation of the disability, the team must conduct an assessment and put a behavior plan in place, or review the plan that already exists. Outside of discipline you can request one as part of an evaluation.
Do I have to give consent?
When the assessment involves evaluating your child it needs your consent like any other evaluation (§ 300.300), and the form should say what will be observed and where. Ask to see the plan for the assessment before you sign anything.
What if I disagree with what it found?
The same route applies as for any evaluation you disagree with, and an outside assessor can be funded by the district (§ 300.502). It also helps to write down what you notice at home, because a pattern that shows up in two settings is much harder to argue with.
Related Terms
Behavior Intervention Plan (BIP)
A plan that describes specific strategies and supports to address challenging behaviors identified through a Functional Behavioral Assessment. It focuses on teaching replacement behaviors and preventing problem behaviors.
Behavior Intervention
Strategies and supports designed to help your child learn appropriate behaviors and reduce challenging behaviors. These should be positive and proactive rather than punitive.
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Check the Whole IEP — Free →This glossary is provided for informational purposes only and does not constitute legal advice. Definitions are simplified for parent-friendly understanding and may not reflect the full legal text. Consult a qualified attorney or advocate for advice about your specific situation.