Functional Behavior Assessment in Massachusetts: What It Is and How to Demand One

Your child is struggling behaviorally at school. Suspensions are mounting. The district is talking about "behavior support" and "a behavior plan," but nothing seems to change. You're not sure if the district has actually assessed why your child is behaving this way — or if they're just reacting to each incident as it comes.

In Massachusetts, a Functional Behavioral Assessment (FBA) is the required starting point for meaningful behavioral support. Here's what an FBA must include, when you're entitled to demand one, and what to do with the findings.

What a Functional Behavioral Assessment Is

A Functional Behavioral Assessment is a systematic process for identifying the function — the underlying purpose or cause — of a student's challenging behavior. The core insight of the FBA is that behavior is communication: when a student acts out, elopes, shuts down, or refuses tasks, they are trying to accomplish something. The FBA identifies what that something is.

The primary functions of behavior are typically categorized as:

• Escape or avoidance: The behavior helps the student avoid a task, person, setting, or sensory experience they find aversive
• Attention: The behavior produces adult or peer attention
• Access to preferred items or activities: The behavior results in getting something the student wants
• Sensory regulation: The behavior provides sensory stimulation or relief from sensory overload

A genuine FBA does not simply list the behaviors. It observes the student across settings and over time, identifies the specific antecedents (what happens right before the behavior), the behavior itself, and the consequences (what happens after), and develops a hypothesis about what function the behavior serves. That hypothesis becomes the basis for the Behavioral Intervention Plan.

When Is a Massachusetts Student Entitled to an FBA?

After a manifestation determination finding. Under 603 CMR 28.08 and IDEA, when a student with an IEP is found to have a manifestation of disability in connection with disciplinary action, the district must conduct an FBA (or review an existing one) and implement or revise a Behavioral Intervention Plan.

When behavior is significantly affecting learning. Even without a disciplinary trigger, if a student's behavior is interfering with their ability to access the curriculum or make effective progress, an FBA may be required as part of a comprehensive evaluation. You can request this by submitting a written evaluation request naming behavioral functioning as an area of suspected educational impact.

When an existing BIP is not working. If your child has a Behavioral Intervention Plan and the behaviors continue to escalate or fail to improve, the existing FBA may be outdated or incomplete. Request a reconvened Team meeting to review the BIP — and request a new or updated FBA if the current one doesn't reflect the student's current behavioral profile.

As part of an initial evaluation. If behavioral difficulties are part of why you're requesting an initial special education evaluation, explicitly include a request for a behavioral assessment and FBA in your evaluation request letter.

What the FBA Must Actually Do

A meaningful FBA is not a checkbox exercise. Deficient FBAs are a chronic problem in Massachusetts districts under staffing pressure — they may consist of a brief interview with the teacher, a rating scale, and a vague summary. A compliant FBA includes:

• Direct observation of the student in multiple settings (classroom, hallway, specials, transitions) and at multiple times of day
• ABC data collection — tracking Antecedents, Behaviors, and Consequences systematically across observations
• Interviews with teachers, support staff, parents, and the student (if capable)
• Record review — academic records, previous behavioral records, IEP history
• Hypothesis development — a specific, testable hypothesis about the function of the behavior, tied to the data collected

If the district's FBA lacks direct observation, consists only of a single rating scale, or produces a BIP full of consequences without proactive strategies, those are documentable inadequacies. You can request an Independent FBA — functionally equivalent to an IEE for behavioral assessment — if you disagree with the district's assessment.

How to Read a Behavioral Intervention Plan

The Behavioral Intervention Plan (BIP) is the document that follows from the FBA. Its quality depends entirely on the quality of the FBA. A BIP based on a genuine FBA will:

• State the hypothesized function of the behavior
• Identify the specific antecedents and settings where the behavior is most likely to occur
• Include proactive strategies that prevent the behavior from occurring (environmental modifications, pre-teaching, preferential scheduling, sensory accommodations)
• Include replacement behavior instruction — teaching the student an alternative way to meet the same function (e.g., teaching a student to ask for a break instead of eloping)
• Include reinforcement strategies for the replacement behavior
• Specify how adults will respond when the challenging behavior does occur
• Include measurable goals and a plan for data collection to track progress

A BIP that consists only of a list of consequences — "student will receive lunch detention if X," "student will be sent to the office if Y" — is not a BIP. It is a disciplinary protocol. It does not address the function of the behavior and will not produce lasting change.

Requesting an Independent FBA

If you disagree with the district's FBA or believe the BIP developed from it is inadequate, you can request an independent behavioral assessment the same way you would request an IEE under 603 CMR 28.04(5). Submit a written request stating that you disagree with the district's behavioral assessment and are requesting an independent FBA at public expense.

An independent Board Certified Behavior Analyst (BCBA) with experience in educational settings is typically the appropriate evaluator. The independent assessor should observe the student in the school environment (which will require district cooperation), review the district's records, and develop their own FBA and BIP recommendations.

If the independent FBA contradicts the district's approach, the IEP Team must engage with those findings at the next Team meeting. A district that dismisses independent behavioral data without documented rationale is creating the record for a DESE PRS complaint or BSEA escalation.

The Massachusetts Special Education Advocacy Toolkit includes an FBA/BIP evaluation request template, a guide to evaluating whether your child's current BIP is compliant with Massachusetts requirements, and guidance on escalating inadequate behavioral programming through the DESE PRS and BSEA systems.

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