Prompt hierarchy

The order is task specific

A gesture may provide little help for one response and nearly give away another. A visual prompt may be easy for one learner to use and inaccessible to someone else. Verbal, model, gestural, positional, stimulus, and physical prompts cannot be ranked universally.

Write the exact hierarchy for the specific response. Define what each level looks like, when it begins, and the observable difference between adjacent levels.

Direction changes the learning experience

Least-to-most prompting begins with an independent opportunity and adds help when needed. Most-to-least prompting begins with assistance likely to produce success and reduces it over time. A time-delay procedure changes when a prompt appears. Graduated guidance changes physical help continuously during movement.

Each arrangement creates different opportunities for errors, independence, delay, and contact. Choose from the learner's history, the task, risk, and direct observation.

Every level needs a movement rule

The plan should name:

• the natural cue and eligible opportunity
• wait time and response window
• ordered prompt levels with concrete definitions
• the rule for moving up, down, or repeating
• error correction and withdrawal response
• reinforcement and ordinary supports
• fading, generalization, maintenance, and review

Without these details, two staff members can use the same hierarchy label while delivering very different teaching.

Calibrate the hierarchy with examples

Build a brief training set for each level. Show a correct delivery, a delivery that is too strong, one that arrives too early, and one that fails to provide enough access. Ask trainees to name the level, timing, and next action from the written rule. Resolve disagreement before client use.

Then test transitions. Include an independent response just before a scheduled prompt, an error after the wait interval, a request for help, a pause, and a missing-material event. The expected response should be clear without improvisation. Record partner agreement separately from learner performance. Repeat calibration after a new staff member, material, setting, or hierarchy version enters the plan. This step helps prevent a nominal least-to-most sequence from becoming rapid, inconsistent prompting in practice.

Keep a current one-page card where teaching occurs. It should name the hierarchy version, prompt abbreviations, supervisor contact, and the response to a pause or equipment failure.

Intensity and intrusiveness differ

A prompt can be highly effective while also intrusive, uncomfortable, or difficult to fade. Evaluate response effort, privacy, touch, sensory load, social visibility, and the person's preference. The least visible prompt is not automatically the least intrusive.

Physical guidance requires competence, applicable consent and assent, health and trauma safeguards, and an immediate stop response. Stillness does not establish permission. Use another effective prompt when it creates less burden.

The hierarchy needs a fading destination

Name the natural cue or agreed ordinary support that should guide the response. Useful AAC, mobility, visual, sensory, and safety supports can remain. The target is functional performance under real conditions.

A prompting-strategy decision tool reviews comparative literature and emphasizes individualized selection and fading. It helps frame decisions without creating one approved hierarchy.

A fictional swim-bag example

Nia chooses a goal of packing her swim bag. The team uses an individualized hierarchy: independent opportunity, pointing to the printed checklist, highlighting the missed line, then modeling the step. Physical prompting is outside this plan.

Across nine eligible opportunities, Nia packs independently in 4 of 9, after a point in 3 of 9, after highlighting in 1 of 9, and after a model in 1 of 9. Record the highest prompt used and each missing-material event. The counts describe these opportunities and do not prove a treatment effect.

Measure more than completion

Track independent and prompted responses by level, latency, errors, withdrawal, highest prompt, partner fidelity, generalization, maintenance, access, and the person's experience. Report invalid opportunities separately with reasons.

ASHA's AAC guidance says AAC users should always have their tools or devices. Communication access remains available at every hierarchy level.

Keep qualified ownership and review

The ABAI basic-principles page and BACB Test Content Outline cover prompting, fading, stimulus control, and evaluation as educational or examination content. A qualified clinician selects and revises the hierarchy within scope.

The current BACB Ethics Code addresses client involvement, consent and assent when applicable, assessment, positive reinforcement, risk, and ongoing evaluation for covered professionals. Revisit the hierarchy when performance, comfort, health, context, or preference changes.