Functional Behavior Assessment in North Carolina: What Parents Need to Know

A functional behavior assessment is either done well — with direct observation, data collection, and a real hypothesis about what's driving the behavior — or it's a checkbox exercise that produces a useless behavior plan. North Carolina parents need to know the difference, when they can demand one, and what the state's special education rules require.

What a Functional Behavior Assessment Actually Does

A functional behavior assessment (FBA) is an evaluation process, not a test. The goal is to determine the function of a challenging behavior — what need or purpose the behavior serves for the child. Common functions include:

• Escape/avoidance — the behavior gets the child out of a task, demand, or setting
• Attention — the behavior results in adult or peer attention (positive or negative)
• Access to preferred items/activities — the behavior produces something the child wants
• Sensory/automatic reinforcement — the behavior provides internal stimulation or relief

Understanding the function is critical because the same behavior can serve completely different purposes for different children. A child who hits to escape a difficult task needs a very different intervention from a child who hits to gain attention. Behavior plans written without a proper FBA often target the behavior's form rather than its function, which is why they frequently fail.

When North Carolina Schools Are Required to Conduct an FBA

Under IDEA, a disciplinary change of placement triggers, as appropriate, an FBA and behavioral intervention services or modifications under 34 CFR 300.530(d)(1)(ii). After an MDR finds the behavior was a manifestation, the team must:

1. Conduct an FBA unless one was already done, or
2. Review the existing BIP and revise it as needed

Beyond these discipline-related requirements, you can request an FBA at any time as part of your child's evaluation or re-evaluation if behavioral challenges are interfering with learning and have not been adequately assessed.

If you request an FBA as part of an initial evaluation or reevaluation, ask that it be included in the evaluation plan and addressed under the applicable evaluation procedures.

What a Good FBA Looks Like

A thorough and useful FBA often includes:

Direct observation: The evaluation often includes observing the child in the actual setting where the behavior occurs — typically the classroom, but it may include hallways, lunch, transitions, or specials. A paper-based or interview-only FBA without direct observation may not provide a complete picture.

Multiple data sources: Teacher interviews, parent interviews, record review, behavior rating scales, and direct observation data (frequency counts, A-B-C charts documenting antecedents, behaviors, and consequences)

Hypothesis statement: A written hypothesis explaining the presumed function of the behavior, based on the data collected

Environmental analysis: Identification of setting events and antecedents — what conditions precede the behavior? What changed recently? Is the behavior worse in certain classes, times of day, or with certain staff?

If the school gives you an FBA report that is two pages long, contains only teacher interview responses, and jumps straight to a list of consequences, it may not provide a complete picture of the behavior's function.

Requesting an FBA in NC

Send a written request to the special education director or principal. If behavioral challenges are interfering with your child's learning and no FBA has been done, you can request it as part of an initial or re-evaluation. Language like this works:

"I am requesting that a functional behavior assessment be conducted as part of [child's name]'s evaluation. I believe [specific behaviors] are interfering with access to education and have not been adequately assessed."

The school must provide prior written notice for a proposed or refused evaluation component — either agreeing to conduct the FBA or explaining why it refuses. A refusal to conduct an FBA when behavior is documented as interfering with learning may support a state complaint or due process argument, depending on the circumstances.

FBA and Manifestation Determination in NC

NC schools have a specific obligation around FBAs in the discipline context. If repeated removals constitute a change of placement, a manifestation determination review (MDR) must be held within 10 school days under 34 CFR 300.530(e). If the MDR team determines the behavior is a manifestation of the disability, the school must either:

• Conduct a new FBA (if one doesn't exist), or
• Review the existing FBA and BIP and revise it as needed

A 2024 Guilford County case found that the MDR panel had a conflict of interest when a team member who had been involved in the disciplinary action also participated in the manifestation determination — the behavior was ultimately found to be a manifestation of the disability. This case is a reminder that NC parents can challenge both the composition and the outcome of MDR meetings.

The Link Between FBA and the Behavior Intervention Plan

An FBA is only useful if it leads to a well-crafted Behavior Intervention Plan (BIP). The BIP should:

• Address the function identified in the FBA (not just prohibit the behavior)
• Include antecedent modifications — changing conditions that trigger the behavior
• Teach a replacement behavior that serves the same function through an acceptable means
• Specify reinforcement strategies for the replacement behavior
• Include data collection procedures to monitor whether the plan is working

If the school proposes a BIP without a completed FBA, ask what data supports the plan and when the FBA will be completed.

For a deeper look at BIP templates and what NC schools are required to include, see Behavior Intervention Plan Template in North Carolina.

The North Carolina IEP & 504 Blueprint includes an FBA request template, a checklist for reviewing FBA quality, and guidance on what to do when the school's FBA process falls short.

Related: Manifestation Determination in North Carolina | NC IEP Process: From Referral to Implementation

See more North Carolina guides →