5.1 Stimulus and Response Prompts

Prompting as supervised assistance

Prompting is planned help. In behavior acquisition, the supervisor may write a teaching procedure that adds assistance so the client can respond correctly, contact reinforcement, and build a response history with fewer errors. An RBT does not invent a prompt hierarchy during the session. The RBT reads the program, prepares materials, delivers the prompt as written, records the response level, and reports whether the client is independent, prompted, incorrect, or not responding according to the data sheet.

A stimulus prompt changes something about the materials, instructions, or environment before the response. Examples include making the correct picture larger, placing the correct item closer, using a visual cue, pointing to a relevant part of the worksheet if the plan calls that a stimulus prompt, or arranging two items so the target item is more noticeable. A response prompt helps the client make the response itself. Examples include model prompts, gestural prompts, verbal prompts, partial physical prompts, and full physical prompts.

The difference matters because stimulus prompts are faded by changing the teaching stimulus, while response prompts are faded by changing the amount or timing of help given to the response.

Prompting should always be tied to the natural cue. If the target is selecting a red cup when asked, "Give me red," the natural cue is the instruction and the relevant stimulus feature is redness. If the RBT always looks at the red cup, taps the table beside it, or says "this one," the client may learn to follow the adult's extra cues instead of attending to red. That is why planned prompts and fading procedures are part of procedural fidelity. Extra hints can make a trial look successful while weakening the teaching goal.

A careful RBT also notices prompt fit. A client who is blind may need different materials than a client who uses visual matching. A client with a history of trauma or medical concerns may have limits on physical prompting. A client who uses an AAC device may need prompts related to navigation, motor movement, or scanning rather than vocal imitation. These are not reasons for the RBT to redesign the program in the moment. They are reasons to pause if dignity or safety is affected, follow workplace procedure, and seek supervisor direction.

In a discrete-trial teaching program, prompts may be specified trial by trial: deliver the instruction, wait two seconds, provide a gestural prompt if no response, then reinforce a correct response. In a naturalistic teaching program, prompts may be embedded into the activity: hold the snack container in view, wait for the mand, then use a model prompt only if the client does not initiate. In both formats, the RBT must avoid adding unplanned prompts such as repeating the instruction many times, changing facial expression, moving materials, or giving the answer under the label of encouragement.

Practical implementation often depends on small details. If the plan says "least-to-most: independent, gesture, model, partial physical," the RBT should not start with full physical guidance because the learner hesitated. If the plan says "errorless full model for the first teaching block," the RBT should not wait for repeated errors before helping. If the plan says "record prompt level used for the first correct response," the RBT should not mark the trial independent because the client eventually responded after help.

Accurate prompt-level data tells the supervisor whether the teaching procedure is moving toward independence or whether the prompt is too weak, too strong, poorly timed, or being faded too slowly.

The professional habit is simple: identify the natural cue, deliver only the planned assistance, reinforce according to the plan, and record what actually happened. When the client responds in a new way, resists a prompt, becomes dependent on a prompt, or makes repeated errors, the RBT reports objective details instead of solving it alone.