ABAT - Applied Behavior Analysis Prompting and Fading Procedures Questions and Answers 2 — Questions and Answers

Question 1: Which prompting system presents the most intrusive prompt first and systematically moves to less intrusive prompts?

Least-to-most prompting
Most-to-least prompting (Correct answer)
Graduated guidance
Simultaneous prompting

Correct answer: Most-to-least prompting

Most-to-least prompting begins with the most intrusive prompt needed for successful responding and gradually fades to less intrusive prompts as the learner gains mastery.

Most-to-least (MTL) prompting begins at the highest level of prompt intrusiveness to ensure errorless responding and then systematically fades to less intrusive prompts based on the learner's performance. This approach is useful for learners who are prone to errors and frustration, or when establishing a new complex behavior. Prompts are faded based on a predetermined criterion (e.g., percentage of correct independent responses). Compared to least-to-most, MTL reduces early errors but requires careful monitoring to avoid prompt dependency.

Question 2: Stimulus fading involves:

Gradually removing response prompts as behavior improves
Systematically changing the physical characteristics of a stimulus while maintaining correct responding (Correct answer)
Teaching the same skill across multiple settings
Reducing the reinforcement density over time

Correct answer: Systematically changing the physical characteristics of a stimulus while maintaining correct responding

Stimulus fading gradually changes the properties of the target stimulus (e.g., color, size, position) to transfer stimulus control to the natural SD.

Stimulus fading is a procedure used to transfer stimulus control from an exaggerated or artificially enhanced stimulus to the natural, less-salient one. For example, a letter taught in a bold, enlarged format might be gradually normalized in font size and weight. Unlike prompt fading, which removes response prompts from the trainer, stimulus fading modifies properties of the target stimulus. The key is to change the stimulus gradually enough that the learner continues to respond correctly throughout the fading sequence, avoiding errors.

Question 3: A BT delivers a verbal instruction simultaneously with a full physical prompt on every trial, then removes prompts based on the learner's accuracy after a fixed number of trials. This is consistent with:

Simultaneous prompting (Correct answer)
Time delay
Errorless learning with a fixed pre-session probe
Graduated guidance

Correct answer: Simultaneous prompting

Simultaneous prompting presents the controlling prompt (e.g., physical) at the same time as the SD on every training trial, with probes used to test independent responding.

Simultaneous prompting is a procedure in which the behavior analyst delivers the SD and the controlling prompt at exactly the same time on every training trial, ensuring errorless responding. Independent probe trials (conducted before or after training sessions) assess whether the learner has acquired the skill without prompts. Because the controlling prompt is always provided during training, simultaneous prompting produces very few errors. Prompt fading is not performed within teaching trials — instead, acquisition is inferred from probe data.

Question 4: Time delay as a prompting procedure involves:

Waiting until the learner makes an error before delivering a prompt
Inserting a brief pause between the SD and the controlling prompt to create an opportunity for independent responding (Correct answer)
Providing multiple prompts simultaneously to prevent errors
Removing all prompts immediately after initial acquisition

Correct answer: Inserting a brief pause between the SD and the controlling prompt to create an opportunity for independent responding

Time delay inserts a delay between the SD and the controlling prompt, giving the learner the opportunity to respond independently before a prompt is delivered.

Time delay is a prompt-fading procedure that inserts a pause between the SD and the controlling prompt. In constant time delay, the same interval (e.g., 4 seconds) is used on all trials after an initial phase of 0-second delays. In progressive time delay, the interval is gradually increased (0, 2, 4 seconds) over trials. This procedure creates an opportunity for independent responding before the prompt is delivered, systematically transferring stimulus control to the SD. Time delay is evidence-based for teaching a wide range of academic, adaptive, and communication skills.

Question 5: Prompt dependency (over-reliance on prompts) is most likely to occur when:

Prompts are faded too rapidly
Prompts are not faded and the learner consistently receives reinforcement for prompted (not independent) responses (Correct answer)
A variable ratio schedule of reinforcement is used
Multiple exemplars are used in training

Correct answer: Prompts are not faded and the learner consistently receives reinforcement for prompted (not independent) responses

When reinforcement is consistently provided for prompted responses without a plan to fade prompts, the learner learns to wait for the prompt rather than responding independently.

Prompt dependency develops when learners receive consistent reinforcement for prompted responses without a systematic plan to fade the prompts and reinforce independent responses. Over time, the prompt becomes an essential antecedent — the learner will not respond until the prompt is delivered. To prevent prompt dependency, behavior analysts should: use the least intrusive prompt possible, plan a prompt fading schedule before starting training, deliver higher-quality reinforcers for independent responses than for prompted responses, and monitor independent responding rates carefully.

Question 6: Which prompt type relies on a visual representation (e.g., a picture or written instruction) to guide behavior?

Gestural prompt
Visual prompt (Correct answer)
Positional prompt
Verbal prompt

Correct answer: Visual prompt

Visual prompts use pictures, written words, photographs, or symbols to cue the learner about what to do next.

Visual prompts use visual stimuli — photographs, line drawings, written words, symbols, or video — to prompt the learner about the correct response or next step. They are widely used in ABA, particularly with learners with ASD or limited verbal comprehension, as visual supports can reduce dependence on verbal prompts and be available independently (e.g., a picture activity schedule). Visual prompts are commonly used in video modeling, visual work systems (TEACCH), and activity schedules to support independence and reduce adult-delivered prompts.

ABAT - Applied Behavior Analysis Prompting and Fading Procedures Questions and Answers 2

Which prompting system presents the most intrusive prompt first and systematically moves to less intrusive prompts?