RBT Task List 3.0 Explained: Every Domain, Item by Item
A plain-English tour of the RBT Task List 3.0 — what each of the six domains actually asks you to do, how heavily each is weighted on the exam, and where new technicians consistently lose points.

The Task List is not a study guide. It is a job description written by a certification board, and every question on the RBT exam is traceable back to a line on it. That makes it the single most useful document in your prep — if you know how to read it.
Here is what each domain actually asks of you, how much of the exam it represents, and where people lose points.
The weighting, at a glance
| Domain | Focus | Share of exam |
|---|---|---|
| Measurement | Collecting and graphing data | ~12% |
| Assessment | Assisting with preference and functional assessments | ~8% |
| Skill Acquisition | Teaching new behavior | ~24% |
| Behavior Reduction | Decreasing problem behavior | ~19% |
| Documentation & Reporting | Notes, communication, records | ~14% |
| Professional Conduct & Scope | Ethics, supervision, boundaries | ~23% |
Two things jump out. Skill Acquisition is the largest technical domain. And Professional Conduct is nearly as large — which surprises almost everyone, because it is the domain people study least.
Measurement
What it asks: Prepare for data collection, use continuous and discontinuous measurement, describe behavior in observable and measurable terms, enter data and update graphs.
Plain English: Can you count the right thing, the right way, at the right time?
Where people lose points:
- Confusing duration (how long) with latency (how long until it starts) and interresponse time (the gap between two responses).
- Not knowing which discontinuous method over- or underestimates. Partial interval overestimates duration; whole interval underestimates it; momentary time sampling is the least biased of the three.
- Writing behavior definitions that include intent ("gets frustrated") rather than observable action ("pushes materials off the table").
If you memorize one thing in this domain, make it the over/underestimate table. It is nearly free points.
Assessment
What it asks: Conduct preference assessments, assist with individualized assessment procedures, assist with functional assessment procedures.
Plain English: You gather the information. Someone else interprets it.
The word assist does a lot of work here, and the exam tests it hard. An RBT can run a paired-stimulus preference assessment. An RBT cannot decide from the ABC data that the behavior is maintained by escape and change the plan accordingly. Any answer option where the technician draws a conclusion about function and acts on it independently is almost always wrong.
Know the preference assessment types cold:
- Single stimulus — one item at a time, approach or not
- Paired stimulus — two at a time, forced choice, produces a ranked hierarchy
- Multiple stimulus with replacement (MSW) — array stays full
- Multiple stimulus without replacement (MSWO) — chosen item is removed
- Free operant — observe what the learner engages with when everything is available
Skill Acquisition
What it asks: Identify the components of a plan, prepare for a session, use contingencies of reinforcement, implement discrete-trial teaching, naturalistic teaching, task analysis and chaining, discrimination training, stimulus control transfer, generalization and maintenance.
Plain English: This is the teaching domain, and it is the biggest one.
Where people lose points:
- Chaining direction. Forward chaining teaches step one first; backward chaining teaches the last step first so the learner always contacts the natural end-of-chain reinforcer; total task presents every step each trial with prompting as needed.
- Prompt hierarchies. Most-to-least reduces errors and is the safer choice for a brand-new or safety-relevant skill; least-to-most promotes independence but produces more errors. Knowing when each is appropriate matters more than reciting the ladder.
- Stimulus control transfer. The point of prompting is to remove prompting. Any answer that leaves the learner responding to the prompt rather than the natural cue is a failure, even if the response looked correct.
- Generalization is planned, not hoped for. Teach with multiple exemplars, multiple people, multiple settings — deliberately.
Behavior Reduction
What it asks: Identify the components of a behavior reduction plan, describe common functions of behavior, implement interventions based on modification of antecedents, implement differential reinforcement, extinction, and crisis or emergency procedures.
Plain English: Reduce the behavior by teaching and arranging the environment — not by punishing.
The four functions are the backbone: escape, attention, access to tangibles, and automatic reinforcement. Nearly every scenario question in this domain works by describing a consequence and asking you to infer the function, or by naming a function and asking which procedure fits.
Differential reinforcement variants show up constantly:
| Procedure | Reinforce | Typical use |
|---|---|---|
| DRA | An alternative behavior | Teach a functional replacement |
| DRI | An incompatible behavior | Cannot occur at the same time as the target |
| DRO | Absence of the behavior for an interval | Reduce without targeting a specific replacement |
| DRL | Lower rates of the behavior | Behavior is acceptable but too frequent |
And know what an extinction burst looks like, because the exam will describe one and ask what you should do. The answer is generally to continue the procedure as written and inform your supervisor — not to abandon it because it appears to be making things worse.
Documentation and Reporting
What it asks: Report variables that might affect the client, generate objective session notes, comply with legal and workplace reporting requirements, communicate with stakeholders as authorized.
Plain English: Write what happened, not what you think it meant.
The single most testable idea: session notes are objective, timely, and free of interpretation. "Client was defiant all morning" is not a session note. "Client engaged in 14 instances of task refusal across three 20-minute work blocks" is.
Also fair game: what counts as a variable worth reporting (illness, medication changes, sleep disruption, a new sibling, a schedule change) and the fact that mandated reporting obligations do not pause because you are new or unsure.
Professional Conduct and Scope of Practice
What it asks: Describe the RBT's role in the service delivery system, respond appropriately to feedback, communicate with stakeholders, maintain client dignity, comply with supervision requirements, maintain professional boundaries.
Plain English: Know your lane, stay in it, and protect the person you serve.
This domain is nearly a quarter of the exam and it is scored on judgment rather than recall. Reliable defaults:
- When a scenario is ambiguous, contact your supervisor is very often the correct action.
- Never accept gifts of significant value, never connect with families on social media, never provide services outside your training.
- Client dignity outranks efficiency. An answer that saves time by embarrassing a client is wrong.
- Feedback is a supervision tool, not a personal attack. The correct response to critical feedback is to implement it and ask clarifying questions.
How to actually use the Task List
Print it. Put a mark next to every item you could teach to another person without notes. The unmarked items are your study plan — and if you find that most of your unmarked items sit in Skill Acquisition and Professional Conduct, that is expected, because that is where the exam lives.
Then take a full-length practice exam and compare your domain scores against the weighting table above. A 60% in a 24% domain costs you far more than a 60% in an 8% domain. Study proportionally, not evenly.
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