A prompt hierarchy in ABA is a ranked list of cues, ordered by how much help each one gives. A therapist or parent uses it to decide how much support a child gets on a new skill, then lowers that support step by step until the child does the skill alone. The goal is never the prompt. The goal is independence.

Below, we explain the prompt types, the two main ways to move through the hierarchy, worked examples for everyday skills, and how to fade prompts so a child does not start waiting for help.

TL;DR

• A prompt hierarchy ranks cues from least help (a glance, a hint) to most help (hand-over-hand guidance), and always aims to fade toward independence.
• Common prompt types are verbal, visual, gestural, model, positional and physical. The exact order can change with the child and the skill.
• Least-to-most starts light and adds help only if needed. Most-to-least starts with enough help to succeed and lowers it as the child gains skill.
• Prompt dependence is the main risk. Time delay, differential reinforcement and planned fading help prevent it.
• Parents can use simple hierarchies at home, best when a clinician has matched them to the child.

Table of Contents

• What a prompt hierarchy is
• Types of prompts, from least to most intrusive
• The verbal prompt hierarchy
• Least-to-most and most-to-least prompting
• Prompt hierarchy examples for everyday skills
• How to fade prompts
• Preventing prompt dependence
• Using a hierarchy at home
• Get help building the right prompt plan
• FAQ
• Sources

What a prompt hierarchy is

A prompt is any help that makes a correct response more likely: a word, a picture, a point, a demonstration, a guiding hand. A hierarchy puts those helps in order so the adult is deliberate about which one to use and when to step down.

In a least-to-most format, the structure is simple. According to the National Professional Development Center on ASD, a least-to-most hierarchy has at least three levels: the first is always independent (no prompt), and the last must be a controlling prompt that ensures the learner responds correctly. Everything in between moves from less to more assistance.

There is no single universal ladder. The AFIRM team at the University of North Carolina notes that the order of prompting levels is not always the same because of differences in student needs and the type of target skill. They also note that prompting can address skills across social, communication, joint attention, behavior, school readiness, play, motor, adaptive and academic areas. That is why a good plan is written for one child, not copied from a chart.

Types of prompts, from least to most intrusive

Definitions from the AFIRM team describe gestural, model, physical, verbal and visual prompts this way: a gesture is a physical movement that shows how to do the skill, a model demonstrates it, physical prompting is hands-on help (full or partial), verbal is any spoken words directed to the learner, and visual is a picture, icon or object that shows how to perform the skill.

One common ordering, from a Queensland education department resource, lists proximity control, verbal, visual, gestural, model and physical from least to most intrusive. An Emporia State University module, drawing on earlier ABA literature, ranks them as independent, visual, proximity, verbal, gestural, modeling and physical. Notice the two lists do not match exactly. Both are reasonable, and your clinician chooses the order that fits your child.

A few practical notes from the sources are worth keeping in mind. The Queensland resource points out that verbal prompts can be difficult to fade, some visual prompts may not need fading at all, and physical prompts should be faded as the task is learned. The Emporia module adds that the most intrusive physical prompting does not respect the autonomy of the client and may trigger sensory sensitivities, which is a good reason to reach for it last and fade it first.

The verbal prompt hierarchy

Families often ask about the hierarchy of verbal prompts, because spoken help is the one adults use most without noticing. Verbal prompts also sit on a ladder. The AFIRM team gives a clear contrast: a more restrictive verbal prompt gives the direction directly, such as “Wash your hands,” while a less restrictive one offers a hint, such as “What do you do if your hands are dirty?”

A practical verbal ladder for one skill might look like this:

1. Wait and say nothing, so the child can respond independently.
2. A general question: “What do we do now?”
3. A hint about the next step: “Hands are dirty.”
4. A direct instruction: “Wash your hands.”
5. A verbal model of the exact response, when the child needs to hear the words, such as “Say, soap, please.”

The AFIRM sight word example uses the same idea: the adult points to the word, then tells the first sound, then says the whole word. Each step gives a little more.

Least-to-most and most-to-least prompting

Two directions of travel organize most hierarchies. According to Autism Speaks, least-to-most prompting starts with the least intrusive prompt and moves up until the child responds correctly. Most-to-least, sometimes called errorless teaching, starts with a controlling prompt and moves down as the child succeeds consistently.

Which one fits? A 2022 review by Cowan and colleagues suggests that least-to-most or prompt delay suits a learner who has shown the skill before or tends to learn quickly. Most-to-least suits a learner who tends toward emotional responding or challenging behavior, works more slowly after errors, or makes frequent errors before a prompt arrives. In plain terms: if mistakes are upsetting, start with more help so the child succeeds. If the child likely knows more than they show, start light and give the chance to respond alone.

The same review lists other prompt-fading options, including prompt delay, most-to-least with a delay, and graduated guidance. It also says that conclusive empirical demonstrations of the recommendations are still needed. That is an honest reminder that a hierarchy is a starting plan. Data from your child’s sessions tell you whether it is working, and a good team adjusts. If you want to see how we think about reading that data, our guide on ABA progress tracking walks through it.

There is one more detail on standard least-to-most. Jones and Zarcone observed that in this format learners are not typically given the opportunity to respond independently first, which may encourage dependence on the model prompt. Building a true independent step into level one, as the NPDC definition does, guards against this.

Prompt hierarchy examples for everyday skills

Worked examples make the idea concrete. Each one starts with an independent chance, then adds help one level at a time.

Pouring water. The National Professional Development Center gives a four-level example: independent, then a visual prompt (holding up the pitcher with a questioning look), then a verbal question, then a verbal model of the target response.

Zipping a coat. The AFIRM team moves from independent, to partial physical (hands placed on the zipper), to full physical (hand-over-hand). That is a good example of a motor skill where a verbal prompt alone would add little.

Drawing a circle. The same packet goes from independent, to a picture of a circle, to a partial model (drawing half), to a full model, to full physical help.

Sitting on the carpet at group time. AFIRM lists independent, then a point to the designated space, a picture of a person sitting, a verbal “Sit down, please,” and finally a partial physical prompt such as taking the child’s hand to guide them there.

Here is a home example we could write for a morning routine, built the same way. The skill is putting a backpack on the hook after school:

1. Independent: the child walks in and hangs the bag.
2. Positional: the hook is within easy reach, and a small picture of a backpack sits above it.
3. Gestural: the parent points to the hook.
4. Verbal: “Backpack goes on the hook.”
5. Model: the parent hangs their own bag, then waits for the child to copy.
6. Partial physical: a light touch at the elbow to start the movement.

The parent starts at the level the child needs today, not the top of the list, and records which level led to success. Tracking that over a week shows whether the child is moving toward level one.

When a skill involves sensory comfort, such as brushing teeth, the prompts often include a visual schedule and a model. A practical read on this is improving toothbrushing with autism, which shows how a routine can be broken into small steps that fit well with the prompt levels above.

How to fade prompts

A prompt only helps if it goes away. The Queensland resource lays out the sequence: decide when prompting is needed, choose the least intrusive prompt that works, deliver it when the behavior is expected, fade it, and reinforce the child, with higher reinforcement when the skill happens without a prompt.

The Emporia module names three ways to fade: reduce the intensity of the prompt (from touching an item to pointing at it), change to a less intense type of prompt, or reduce how often you prompt, for example prompting only every 3rd to 7th time. The last step is removing the prompt entirely. The University of Nevada, Reno describes the system of least prompts as self-fading: as a child performs correctly at lighter levels, the heavier prompts used before are no longer needed.

Time delay

Time delay is one of the cleanest ways to fade. The AFIRM team describes constant time delay as starting with a 0-second gap between the instruction and the prompt, then, after at least two trials, using a fixed delay of typically 3 to 5 seconds. Progressive time delay increases the wait gradually, usually up to 5 seconds and sometimes as much as 10. The pause gives the child room to try before help arrives.

For a printable version of the fading steps, see our prompt fading templates for clinicians and caregivers.

Preventing prompt dependence

Prompt dependence means a child can do the skill only when someone cues them. Jones and Zarcone describe it as correct responding that relies on the therapist’s controlling prompt, with little progress in fading it. The Emporia module defines it as the inability or difficulty to complete a task without a prompt, and notes that prompts can be reintroduced and faded again when needed.

What helps? Weyman, Imler and Kelly list prompt fading, differential reinforcement and extended response intervals as evidence-based approaches. Differential reinforcement means independent responses earn a better reward than prompted ones. The aim, in their words, is to make an independent response more likely than waiting for the prompt.

Time delay fits here too. AFIRM states that time delay reduces prompt dependence and is a foundational practice for children and youth on the spectrum from ages 0 to 22. Cowan and colleagues add a useful nuance: a prompt delay is a strategy that can be combined with other procedures to address the problem, not a stand-alone cure.

Simple habits for parents:

• Pause for a few seconds before you help.
• Use the lightest prompt that works.
• Celebrate the independent try more than the prompted one.
• Do not repeat the same instruction over and over, because the repetition becomes the prompt.
• Note the level you used so the next session can start lighter.

Our perspective

After more than 20 years in this work, we have seen that the hierarchy on paper is the easy part. The hard part is choosing the right starting point for the child sitting in front of you, and then having the patience to let the prompts go.

That is why we write individualized treatment plans rather than handing every family the same chart. A child who becomes upset after an error may need a different starting level than a child who learns quickly, and a skill like zipping a coat asks for different prompts than a skill like asking for a break.

We also believe the hierarchy only works when the people around the child use it the same way. Parent coaching is part of what we offer for exactly this reason: when a parent, a teacher and a therapist all prompt and fade in a consistent way, a child gets clear messages and moves toward independence faster. Families are often surprised how much confidence they gain once they can see the levels and name them.

Every child can grow, and every small independent try deserves to be noticed. That is the heart of what we do.

Jennifer

Using a hierarchy at home

Start with one skill, not five. Pick something the child nearly does already, such as hanging a coat or washing hands, and write down the levels you will use. Keep the list on the fridge so every adult in the home follows the same order.

If the skill involves speech, modeling matters a great deal. Our parent guide on why modeling language benefits autism shows how a model prompt can build into spontaneous words, and our verbal behavior ABA guide covers how language goals are sequenced. For daily routines, see how ABA improves daily living skills. For safety goals, where a prompt that is too light carries real risk, our safety skills guide explains how to practice in steps.

If your child becomes distressed when you step in with a physical prompt, stop and talk with your child’s BCBA. As the Emporia module notes, physical prompting can touch on sensory sensitivities, and a clinician can offer a lighter alternative.

Get help building the right prompt plan

A prompt hierarchy works best when it is matched to your child’s strengths, sensory profile and goals, and when the whole family can use it. At Building Block Resolutions, our team writes individualized ABA plans and coaches parents to carry them into daily life. You can learn more about ABA autism therapy or about parent coaching, or reach out through our main site to talk about your child.

If travel is a barrier, we also offer remote ABA therapy so coaching on prompts and fading can happen right where your child practices.

FAQ

What is the prompt hierarchy in ABA?

It is an ordered list of cues, from least help to most help, used to teach a new skill. The adult chooses a level, delivers it, and over time moves toward the independent level where no prompt is needed. The exact order depends on the child and the skill.

What are the main types of prompts in ABA?

The common types are verbal, visual, gestural, model, positional and physical, with physical prompts being full or partial. Some lists add proximity. Most lists put physical help last because it is the most intrusive, and sources suggest fading it first.

What is the difference between least-to-most and most-to-least prompting?

Least-to-most begins with a light prompt and adds help only if the child does not respond. Most-to-least begins with enough help to guarantee success and lowers it as the child gets more consistent. Your child’s BCBA picks between them based on how quickly the child learns and how they react to errors.

What is prompt dependence, and how do we avoid it?

Prompt dependence happens when a child responds correctly only after a cue. Fading prompts on a plan, pausing before helping through time delay, and giving better reinforcement for independent responses all lower the risk. Ask your clinician to build these into every goal.

Sources

• Steps for Implementation: Least-to-Most Prompts (National Professional Development Center on ASD)
• Prompting Introduction and Practice Packet (AFIRM, 2024)
• Prompting Brief Packet (AFIRM, 2024)
• Prompting Brief Packet, earlier link (AFIRM, 2024)
• Time Delay Brief Packet (AFIRM, 2024)
• Prompting (Autism Hub, Queensland Department of Education)
• Prompting for Autistic Persons (Emporia State University)
• Prompting, Evidence-Based Practices (Autism Speaks)
• A Decision-Making Tool for Evaluating and Selecting Prompt Fading Procedures (Cowan et al., 2022)
• Comparison of Prompting Strategies on Two Types of Tasks (Jones and Zarcone)
• Addressing Prompt Dependency in the Treatment of Autism (Weyman, Imler and Kelly, 2024)
• Using the System of Least to Most Prompts (University of Nevada, Reno)

Recommended

• Operational Templates for Prompt Fading: Clinicians and Caregivers
• ABA Treatment Plan Examples: Templates and Payer-Ready Guides
• Clinician Backed 7 Steps Parents Can Use to Shape Behavior in ABA
• Antecedent Intervention in ABA: A Parent’s Guide