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RBT Prompting and Prompt Fading Questions

Prompting is part of task C.7 in the Registered Behavior Technician (RBT) Test Content Outline, and it runs through almost every skill-acquisition program an RBT delivers. These 10 questions cover telling verbal, gestural, movement and stimulus prompts apart, running most-to-least prompting and time delay, and fading prompts on schedule so the learner does not become prompt dependent.

Written and reviewed by the LexPort exam-prep team, led by our Founder & Exam-Prep Lead. LexPort builds certification practice questions โ€” this is exam-preparation material, not medical advice. Last reviewed October 2026.

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Question 1 of 5โ˜… 0/5

Mia is learning to wash her hands at the clinic sink. When she stops after wetting her hands, the RBT says, 'Get the soap,' and Mia reaches for the soap pump. How should this prompt be classified?

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Test yourself: RBT Prompting

Three RBT practice questions on rbt prompting โ€” tap an answer for instant feedback. The app has 3,000+, timed and scored.

Question 1

An RBT tells Jack it is time to clean up his toys. Jack begins cleaning 40 seconds later and keeps cleaning for 3 minutes. The supervisor wants data on how promptly Jack responds to instructions. What should the RBT record?

โ–ธ Why B is the answer

Latency of 40 seconds is correct because latency measures how promptly a response begins after an instruction or other cue, and Jack started cleaning 40 seconds after the instruction. Duration measures how long a response continues once it starts, which here is the 3 minutes of cleaning. Recording a duration of 40 seconds attaches the right number to the wrong measure. Recording a latency of 3 minutes confuses how long Jack cleaned with how quickly he started. Recording a duration of 3 minutes is an accurate duration value, but the supervisor asked how promptly Jack responds, which only latency answers. Matching the measure to the question asked keeps the data useful.

๐Ÿ”‘ Key takeaway

Latency is how fast a response starts; duration is how long it lasts.

Question 2

During a receptive program, an RBT asks Sam to 'find the cup.' When Sam hesitates, the RBT nods and motions toward the cup with an open hand, without touching Sam or the materials. How should the RBT record the prompt that was used?

โ–ธ Why A is the answer

Nodding and motioning toward the cup without touching Sam or the materials is a gestural prompt: the RBT's body movement directs attention to the correct item while Sam still performs the whole response. A physical prompt would require contact with Sam, such as guiding his hand to the cup. A model prompt would involve the RBT demonstrating the response, for example touching the cup herself so Sam could imitate. A positional prompt would mean placing the cup closer to Sam than the other items before the instruction, which changes the materials rather than the RBT's movements. Recording the exact prompt type matters, because the supervisor uses prompt-level data to decide when and how to fade.

๐Ÿ”‘ Key takeaway

Pointing, nodding, or motioning toward the answer without touching is a gestural prompt.

Question 3

An RBT is told to use a 4-second time delay when prompting Grace to label animal pictures during discrete trials. The prompt is the RBT saying the animal's name. Which sequence should the RBT follow on each trial?

โ–ธ Why B is the answer

A time delay inserts a planned pause between the instruction and the prompt. The RBT asks 'What animal?', waits the full 4 seconds, and says the name only if Grace has not answered, giving her a chance to respond independently before help arrives. Saying the name before the question reverses the order, so the prompt comes first and the instruction loses control of the response. Saying the name right away and then delaying praise places the pause between the response and the reinforcer, which weakens reinforcement instead of fading the prompt. Waiting 4 seconds after each answer describes the inter-trial interval, which is unrelated to when the prompt is delivered. The pause always sits between instruction and prompt.

๐Ÿ”‘ Key takeaway

Time delay means instruction, planned pause, then the prompt only if needed.

Question 1

Mia is learning to wash her hands at the clinic sink. When she stops after wetting her hands, the RBT says, 'Get the soap,' and Mia reaches for the soap pump. How should this prompt be classified?

  • A) Physical prompt
  • B) Verbal promptโœ“
  • C) Gestural prompt
  • D) Model prompt

๐Ÿ’ก Key Takeaway

If the help is spoken, it is a verbal prompt, whether it is a full instruction, a single word, or a sound.

Show rationale

Saying 'Get the soap' is a verbal prompt: spoken words that tell Mia which response to emit next. Verbal prompts can be full instructions, single words, or even sounds, as long as the help is delivered vocally. A gestural prompt would involve the RBT pointing at or motioning toward the soap pump without speaking, which did not happen here. A model prompt would require the RBT to demonstrate the step by pumping the soap herself so Mia could imitate it. A physical prompt would involve touching Mia, such as guiding her hand to the pump. Because the only help Mia received was the spoken instruction, the correct classification is a verbal prompt, which the RBT records and fades according to the plan.

Question 2

During a discrete trial tact program, an RBT holds up a ball and asks Ava, 'What is it?' Her plan calls for a partial verbal prompt when Ava does not answer within 3 seconds. Which action by the RBT is a partial verbal prompt?

  • A) Say the whole word 'ball' and have Ava repeat it.
  • B) Point to the ball and wait silently for her answer.
  • C) Say the sound 'b' and let Ava finish the word.โœ“
  • D) Show a card with the printed word 'ball' on it.

๐Ÿ’ก Key Takeaway

A partial verbal prompt gives just a sound or part of the word; a full verbal prompt gives the whole word.

Show rationale

Saying only the first sound, 'b,' is a partial verbal prompt: it gives Ava a spoken phoneme that cues the correct vocal response while still requiring her to produce the rest of the word. Saying the whole word 'ball' is also verbal, but it is a full verbal (echoic) prompt, a more intrusive level than the plan calls for. Pointing to the ball is a gestural prompt; it draws attention to the object but gives no spoken cue about what to say. Showing a card with the printed word is a visual or textual prompt rather than a spoken one. Matching the exact prompt level written in the plan keeps data accurate and lets the prompt be faded systematically.

Question 3

An RBT is teaching Luis to read the sight word 'dog.' To help him, the RBT places a small picture of a dog directly above the printed word card and plans to fade the picture over sessions. Which type of prompt is the RBT using?

  • A) Model prompt
  • B) Gestural prompt
  • C) Within-stimulus prompt
  • D) Extra-stimulus promptโœ“

๐Ÿ’ก Key Takeaway

Adding something extra next to the target is an extra-stimulus prompt; changing the target itself is a within-stimulus prompt.

Show rationale

Placing a picture of a dog above the word card is an extra-stimulus prompt: an external cue added alongside the target stimulus to make the correct response more likely, then faded so the printed word alone controls reading. A within-stimulus prompt would change a feature of the word card itself, such as enlarging or coloring the letters, rather than adding a separate item. A gestural prompt would involve the RBT pointing or motioning, while here the help comes from added material, not the RBT's movement. A model prompt would require the RBT to say 'dog' for Luis to imitate. Knowing the prompt type helps the RBT fade it correctly, by gradually shrinking or removing the added picture.

Question 4

Jonah's plan says to fade from a gestural prompt to a verbal prompt after two sessions at 80% correct on prompted trials. He reached that criterion today, but the RBT worries he will make errors without the gesture. What should the RBT do in the next session?

  • A) Move to the verbal prompt level as the fading plan specifies.โœ“
  • B) Keep using the gestural prompt until Jonah makes no errors at all.
  • C) Raise the criterion to 100% before fading, since errors are likely.
  • D) Remove all prompts and let Jonah respond independently from now on.

๐Ÿ’ก Key Takeaway

Fade prompts exactly as the plan says; holding on to them builds prompt dependence.

Show rationale

Moving to the verbal prompt level follows the written fading plan, and systematic fading is what prevents prompt dependence, where a learner waits for help instead of responding to the instruction. Continuing the gestural prompt until there are no errors at all keeps Jonah reliant on the gesture and ignores a criterion he has already met. Removing every prompt at once skips the planned steps and risks a sudden burst of errors and frustration. Raising the criterion to 100% is a change to the plan, which only the supervisor can make; if the RBT has concerns, they share them with the supervisor while still implementing the plan as written. Prompts are temporary supports that must be faded on schedule.

Question 5

An RBT is teaching Sofia to touch body parts on request using constant time delay. The planned zero-second trials, with the prompt given right after each instruction, are complete, and the plan lists a 3-second delay next. How should the RBT prompt on the following trials?

  • A) Add 1 second of wait per trial until the delay reaches 3 seconds.
  • B) Wait 3 seconds after each instruction, then prompt if needed.โœ“
  • C) Give the prompt at the same moment as each instruction.
  • D) Stop prompting and wait for her to answer on her own every time.

๐Ÿ’ก Key Takeaway

Constant time delay: zero-second trials first, then the same fixed delay on every trial.

Show rationale

In constant time delay, the first trials use a zero-second delay, so the prompt is delivered together with the instruction. After those trials, every trial uses the same fixed delay, here 3 seconds, giving Sofia a chance to touch the correct body part before the prompt arrives. Continuing to prompt at the same moment as the instruction keeps her on zero-second trials and blocks independent responding. Adding 1 second per trial describes progressive time delay, a different procedure from the one in the plan. Stopping prompts altogether removes the error-reducing support that time delay is designed to provide. The RBT waits the fixed 3 seconds, reinforces correct responses made before the prompt, and records whether each response was prompted.

Question 6

During a receptive identification program, an RBT asks Priya to 'touch red.' To make the correct choice stand out, the RBT has printed the red card twice as large as the other two cards in the array. Which kind of prompt is this?

  • A) Model prompt
  • B) Partial physical prompt
  • C) Stimulus promptโœ“
  • D) Gestural prompt

๐Ÿ’ก Key Takeaway

Change the materials (size, color, shape) and you are using a stimulus prompt; change your own behavior and it is a response prompt.

Show rationale

Making the red card larger than the others is a stimulus prompt, because it alters a physical feature of the instructional material itself, here its size, so the correct card is more noticeable. Changes to color or shape work the same way, and the added size is faded until all cards match. A gestural prompt would involve the RBT pointing or nodding toward the red card, which is a behavior of the RBT, not a change to the materials. A partial physical prompt would involve lightly touching Priya, such as nudging her elbow toward the card. A model prompt would require the RBT to touch red first so Priya could imitate. Here, only the material changed.

Question 7

Carlos has never zipped his jacket, and the BCBA has set up most-to-least prompting. His plan lists four prompt levels: verbal, gestural, partial physical, and full physical. Which prompt level should the RBT use on the first teaching trials?

  • A) Verbal prompt
  • B) Partial physical prompt
  • C) Gestural prompt
  • D) Full physical promptโœ“

๐Ÿ’ก Key Takeaway

Most-to-least starts with the most help and steps down; least-to-most starts with the least help and steps up.

Show rationale

Most-to-least prompting begins at the most intrusive level in the hierarchy, here full physical guidance, so Carlos experiences success and reinforcement from the first trial. As he responds correctly, the RBT fades systematically to partial physical, then gestural, then verbal, following the plan's criteria. Starting with a verbal prompt describes least-to-most prompting, where help increases only after an error or no response; it is the reverse sequence. A gestural prompt is a middle level and would skip the more supportive starting point the plan requires. A partial physical prompt is close, but it is the second step in this hierarchy, used only after Carlos meets the criterion at full physical guidance. The order of the list does not set the starting point.

Question 8

An RBT runs fast-paced discrete trials with Noah, prompting as needed and scoring each response as independent or prompted. To keep the pace up, the RBT is tempted to score trials later. When should the RBT record the outcome of each trial?

  • A) In the brief pause after the consequence, before the next trial.โœ“
  • B) At the end of each 10-trial block, recalling how each one went.
  • C) Right after the instruction, before Noah has a chance to respond.
  • D) At the end of the session, using a mental count of correct trials.

๐Ÿ’ก Key Takeaway

Score each trial in the inter-trial interval, before the next instruction, never from memory later.

Show rationale

Trial outcomes are recorded during the inter-trial interval, the brief pause after the consequence and before the next instruction, while the response and prompt level are still fresh. This keeps data accurate without slowing teaching much. Scoring right after the instruction is too early, because Noah has not yet responded and the prompt level is unknown. Waiting until the end of a 10-trial block forces the RBT to recall several responses, which invites errors, especially in telling prompted from independent trials. A mental count at the end of the session is the least accurate choice and loses the trial-by-trial prompt information the supervisor needs to make fading decisions. Immediate recording is part of correct discrete-trial implementation.

Question 9

Ellie traces her name over a dark printed model, a visual prompt her plan says to fade gradually. She now traces accurately on every trial with the model at full darkness. Which action BEST fades this visual prompt?

  • A) Keep the model at full darkness and add a verbal cue for each letter.
  • B) Print the model slightly lighter each time she meets the criterion.โœ“
  • C) Remove the printed model entirely after one accurate tracing.
  • D) Guide Ellie's hand through any letter she traces outside the lines.

๐Ÿ’ก Key Takeaway

Fade a visual prompt gradually, for example by making it lighter step by step until it disappears.

Show rationale

Printing the model slightly lighter each time Ellie meets the criterion is stimulus fading: the visual prompt's opacity is reduced gradually, so control shifts from the dark model to Ellie's own writing with few errors. Eventually the faint model can be removed entirely. Removing the model all at once after a single accurate tracing skips the gradual steps and often produces errors. Keeping the model dark and adding a verbal cue for every letter adds a second prompt instead of fading the first, increasing the risk of prompt dependence. Guiding Ellie's hand is a physical prompt, a more intrusive level of help that moves in the wrong direction when she is already tracing accurately.

Question 10

An RBT is running intraverbal discrete trials with Leo. His program sheet notes that targets are answered from what Leo hears, without picture prompts or objects in view. Which trial correctly presents an intraverbal target?

  • A) The RBT asks Leo to touch the bed among three pictures.
  • B) The RBT holds up a picture of a bed and asks, 'What is it?'
  • C) The RBT says, 'You sleep in a...' and Leo says, 'bed.'โœ“
  • D) The RBT says, 'Say bed,' and Leo repeats, 'bed.'

๐Ÿ’ก Key Takeaway

Intraverbal means answering or completing someone's words with nothing to look at.

Show rationale

An intraverbal is a verbal response to someone else's words that does not simply repeat them and has no picture or object to name, such as completing 'You sleep in a...' with 'bed.' Leo must answer from what he hears, which is exactly what the program sheet describes. Holding up a picture of a bed and asking what it is makes the picture the main cue, so that trial teaches a tact, or labeling. Saying 'Say bed' and having Leo repeat the word is an echoic trial, where the response copies the RBT's sound. Asking Leo to touch the bed among three pictures is listener responding, also called receptive identification, which needs no vocal answer at all. Only the fill-in phrase meets the intraverbal definition.

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