Does Every FBA Require a Functional Analysis?

Is a functional analysis required for FBA?

Ask for a method-to-decision table. For each interview, record review, observation, descriptive measure, experimental comparison, or treatment probe, list the question, expected information, limits, risk, required authority, client participation, and result that would change care. Avoid equating a report label with a method actually completed.

Interpret the evidence cautiously

An FA can provide stronger causal evidence for a tested relation, while still being limited to its conditions. It may add little when a low-risk reversible support can be evaluated directly, or it may be valuable when competing hypotheses would lead to materially different care. Severe risk, medical uncertainty, weak implementation, or missing expertise can change the decision.

Use current assessment and ethics sources

Hanley, Iwata, and McCord reviewed wide variation in FA designs, settings, conditions, and targets. Hanley's FBA review describes a broader assessment process. These reviews support method clarity and calibrated inference rather than a single protocol for every referral.

Keep communication available

The ASHA AAC portal supports continuous access to communication tools. Preserve the person's established communication, a usable stop or correction response, ordinary supports, and accessible participation throughout this specific assessment decision.

A practical example

For Ana's low-risk request-for-help goal, interviews and matched observations suggest a clear access barrier. The clinician tests accessible help and partner response with outcome data. The report states that no FA was conducted, why the chosen evidence fit the decision, and what finding would trigger reassessment.

Questions families can use

What decision needs stronger evidence? What risks or burdens apply? Who is qualified? How will the client consent or assent? What alternatives exist? What uncertainty remains without an FA?