People say "FBA/BIP" so often it sounds like one thing. It is two documents with two jobs, and mixing them up is how a plan ends up addressing the wrong problem.
This page puts them side by side, shows how one feeds the other, and notes what IDEA says.
One line each
An FBA answers: why does this behavior happen, and in what situations?
A BIP answers: given that, what will adults do to prevent it, teach something better, and respond?
Illinois's guidance describes the FBA as designed to help teams develop a BIP with positive interventions that address the behavior's function. Colorado's guide describes the BIP as a set of instructions for staff on how to change school systems, alter environments, teach skills, and acknowledge positive behavior.
Side by side
| FBA | BIP | |
|---|---|---|
| Kind of document | Assessment | Plan |
| Main question | Why does the behavior happen? | What will we do about it? |
| Built from | Records, interviews, observation, data | The FBA's hypothesis, plus strengths and resources |
| Key output | A defined behavior, patterns, a hypothesis about function | Prevention steps, skills to teach, responses, data and review plan |
| Who uses it | The team deciding what to do | The staff carrying it out every day |
| Changes when | New data show the picture was wrong or incomplete | Data show the plan is or is not working |
| IDEA definition | None, per Colorado | None, per Colorado |
Both columns end with the same thing: a team looking at data and deciding what to do next.
How the FBA feeds the BIP
The hypothesis statement is the hinge. Colorado's guide says the BIP should include the hypothesis from the FBA, with a brief operational definition of the behavior, the conditions under which it occurs, the suspected function, and how setting events might matter. It also says that all selected interventions should relate to the hypothesis, and that if the hypothesis is not clear, the team risks putting the wrong interventions in place and potentially making the behavior stronger.
| FBA finding | Where it shows up in the BIP |
|---|---|
| Defined behavior: leaves seat during independent reading | Behavior goal and data definition |
| Pattern: happens with long text, adult help follows | Antecedent strategy: shorter chunks, a check-in before starting |
| Hypothesis: function is to get adult help | Replacement skill: ask for help with a card |
| Consequence pattern: wandering gets quiet help | Response plan: give help faster for the card, less for wandering |
| Strength: likes working with a partner | Reinforcement: partner reading as a choice |
Notice that nothing in the right column comes from nowhere. A strategy that cannot be traced to a finding on the left is a candidate for removal.
What IDEA says about each
IDEA uses both terms in section 300.530. When a manifestation determination review finds the conduct was a manifestation of the child's disability, the IEP team must either conduct an FBA, unless the district conducted one before the behavior occurred, and implement a BIP, or, if a BIP already exists, review and modify it as necessary. For a child removed from the current placement, the rule also says the child should receive, as appropriate, an FBA and behavioral intervention services.
Beyond discipline, section 300.324(a)(2)(i) asks the IEP team to consider positive behavioral interventions and supports for a child whose behavior impedes learning. Colorado's guide adds that failing to develop, review, or revise a BIP as part of the IEP process, or to implement it properly, may result in a denial of a free appropriate public education. Read that as Colorado's statement of the risk. For the discipline rules in more depth, see manifestation determination basics.
Common mix-ups
- Calling the plan the assessment. If there is a plan but no analysis behind it, ask what pattern the strategies were chosen to address.
- Writing a plan that lists only consequences. Colorado's guide says the goal of a BIP is to make the behavior irrelevant, inefficient, and ineffective, which means prevention and teaching come first.
- Treating the FBA as a one-time event. Illinois says additional FBAs should be conducted if significant modifications or new interventions are necessary.
- Confusing the BIP with behavior goals. A goal says what the student will do and how it is measured. A plan says what adults will do. See BIP vs behavior goals.
Putting them in order on a calendar
A simple order for a team, with the steps drawn from Queensland's and Colorado's guides: identify the behavior, collect baseline, review records, interview, observe, write the hypothesis, hold the plan meeting, train the staff, collect data, review. For the first half, see FBA steps in order. For the second half, see what to include in a BIP.
Who sees which document
The two documents have different readers. The FBA is for the team making decisions and for the family, so that everyone sees the same evidence. The BIP is for every adult who will carry it out, so it has to be short enough to use and specific enough to follow.
Illinois's guidance says a BIP should list the school staff who will be informed of it, who will receive a copy, and how it will be communicated to them. It also asks for a specific method to communicate with parents or guardians about the child's behavior and to coordinate school-based and home-based interventions. A plan that sits in a file while the substitute improvises is a plan that has not been shared. See sharing a BIP with all staff.
Three questions to ask of any plan you inherit
If you pick up a student's file and find both documents, a quick read can tell you whether they belong together.
- Can I find the hypothesis in the plan? If the BIP never mentions why the behavior is thought to happen, the strategies may have been chosen from habit.
- Does each strategy trace to a finding? Use the table above. Strategies that match nothing in the assessment may be extras that add work without adding fit.
- Is there a date for review? An assessment is a snapshot. A plan with no review date will drift away from the student it was written for.
If the answers are no, that is not a reason to blame anyone. It is a reason to ask the team to meet, look at the data, and update both documents. Colorado's guide treats the BIP as something to implement, review, and revise, not a form to file.
Why the order matters in practice
Teams under pressure sometimes write the plan first, because something has to be done by Monday. That can be reasonable as a short-term safety step. Illinois's guidance describes the recommended approach as an FBA, careful planning and monitoring of the intervention, and systematic evaluation of outcomes, in that order. If a quick plan goes in first, treat it as provisional, schedule the assessment, and be ready to change the plan when the function becomes clearer. A plan that was right by luck and wrong by design will not hold for long.
Where local rules decide
How an FBA is requested, how consent is obtained, how long each step may take, and what form the plan uses vary by state and district. Colorado and Illinois are examples, and neither is a federal rule. Ask your special education director which procedure applies to you. Terms are in the glossary.