FREE ATP Study Guide 2026: The RESNA Assistive Technology Exam

This free ATP study guide walks through the highest-yield content the RESNA Assistive Technology Professional exam tests, organized by the five official content areas of assistive technology practice.^[1]

It is interactive, not a wall of text: every content area has worked scenarios, comparison tables, labeled diagrams, and built-in flashcards — taught to the entry-to-practice ATP standard the exam actually measures, which rewards person-centered, needs-first reasoning over product memorization.

Read it content area by content area, then round out your prep with our practice questions and flashcards. The exam has 180 questions in four hours and a passing scaled score of 600 (on a 200–800 scale).^[1]

RESNA ATP Exam Snapshot

Assessment of Need and the Action Plan are the two largest areas, at 29% each (about 58% combined), so most candidates need the most reps on the front end of the AT process — analyzing the person, the task, and the environment, and feature-matching a device. Implementation is 23% and follow-up is 19%, and Professional Conduct carries no separate weight but threads through every item. Weight your study accordingly.^[1]

These weights are from RESNA's 2022 Job Task Analysis, effective for exams since January 2023. Note two things sources sometimes get wrong: RESNA publishes percentage weights, not per-area item counts, and the current handbook specifies a 180-question exam even though RESNA's certification landing page still says 200 in places — use 180.^[1]

How the ATP Exam Is Built

The ATP exam is built from RESNA's Job Task Analysis, a survey of practicing AT professionals that identifies the knowledge and tasks the role actually requires.^[1] That analysis produced the five content areas above and maps closely to the AT service-delivery process — the sequence from referral through follow-up. Knowing where a question sits in that process is often the fastest route to the right answer, because the exam tests judgment within the process, not isolated facts.

Two structural truths shape almost every item. First, the process is needs-first and person-centered: you assess the person, the task, and the environment before you reach for a device, and you involve the consumer in the decision. Second, implementation is gated by funding— you do not order, fit, and deliver equipment until the funding is approved and secured, which is exactly why RESNA names the third content area “Implementation of Intervention (Once Funded).”^[1]

1 · Assessment of Need

Assessment of Need is 29% of the exam — the largest area tied with the Action Plan. It is the information-gathering phase: understand the person's goals and abilities, the activities they need to do, and the environments they live in, and compare function with and without assistive technology. The exam wants a structured, needs-first assessment, not a jump to a favorite product.^[1]

The AT Service-Delivery Process

Every ATP question lives somewhere in the assistive technology service-delivery process: referral and intake, then assessment of need, then the action plan, then funding, then implementation, then follow-up. Knowing where a scenario sits tells you the right next action — you do not implement before you assess, and you do not order equipment before funding is secured.^[1]

HAAT, SETT & Feature Matching

Two frameworks structure AT reasoning, and the exam expects you to apply them. The HAAT model (Cook & Polgar) models AT as a Human doing an Activity with Assistive Technology, all inside a Context — change one element and the others must be re-balanced.

The SETT framework (Joy Zabala) is a team, needs-driven process: define the Student, the Environment, and the Tasks first, and choose the Tool last.^[5] Both lead to feature matching — matching device features to the person, the task, and the environment rather than starting from a preferred product.

Good assessment relies on functional assessment — directly observing the person doing the actual task in context — which is more valid than self-report alone. It is also person-centered: the consumer is an active decision-maker, which is the single biggest safeguard against the device being abandoned later.^[7]

Seating & Mobility Assessment

Seating and wheeled mobility is a high-yield assessment topic (and the basis of the SMS specialty). The recommendation is driven by posture (a neutral, stable pelvis supported first, then trunk and head), skin integrity over bony prominences, the person's function and transfers, and the environment and transport the chair must fit. A mat evaluation measures the body — and distinguishes a flexible deformity (correct toward neutral) from a fixed one (accommodate it) — before the chair is configured.

The single most harmful seating malalignment is a posterior pelvic tilt, which causes sacral sitting, shear, and skin breakdown — so the pelvis is positioned in neutral first. Protect the skin over the ischial tuberosities and sacrum with pressure mapping and a redistributing cushion.

For power positioning, tilt-in-space changes orientation while keeping the seat-to-back angle (less shear), while recline opens that angle. Choose power mobility when the person cannot safely or independently propel an optimally configured manual chair.

2 · Development of Intervention Strategies (Action Plan)

The Action Plan is the other 29% area: turning the assessment into a recommendation. You feature-match candidate devices to the person and task, trial the strong options with the actual user, and write a justified plan. This area is where you must know the device categories cold — AAC, computer access, sensory aids, and EADL — so you can pick the least restrictive option that fits.^[1]

Augmentative & Alternative Communication (AAC)

AAC supplements or replaces speech. The first distinction is aided vs. unaided — unaided uses only the body (gestures, sign, facial expression), aided uses an external tool. The second is low-tech (picture boards and books) vs. high-tech (speech-generating devices and apps with voice output).

Layouts prioritize core vocabulary — high-frequency words usable across topics — supplemented by topic-specific fringe words.^[4] Underlying all AAC is the principle of presuming competence: provide access before requiring proof of skill.

Computer & Device Access Methods

Access methods split into two families. Direct selection lets the user point to or activate the target directly — touch, mouse, trackball, joystick, head pointer, eye gaze, or voice — and is fastest when motor control allows.

When motor control is too limited, use scanning — choices are highlighted in sequence and the user selects with a switch; row-column scanning speeds it up on large displays.^[6] Match the method to the user's most reliable, least-fatiguing movement.

For limited fine motor control, a trackball needs no whole-arm movement, an on-screen keyboard removes the physical keyboard, and a key guard, word prediction, or built-in OS features (Sticky Keys, Filter Keys, dwell click) reduce errors and effort — usually the no-cost first line before specialized hardware. Voice recognition is appropriate for limited hand use, but only when the person's speech is clear and consistent; it performs poorly with dysarthric or inconsistent speech, so speech clarity is the factor to evaluate first.^[6]

Sensory Aids, EADL & Trialing

For vision, scale the solution to the residual vision: screen magnification and a CCTV/video magnifier for usable sight; a screen reader plus OCR to read printed text aloud when reading by sight is not viable; and a refreshable braille display for braille readers (and for people who are deaf-blind, since speech output is not usable).^[8]

For hearing, an FM system improves the signal-to-noise ratio in groups, a loop system feeds a hearing aid's telecoil, and alerting devices flash or vibrate for safety. An EADL lets a person with significant mobility impairment control lights, the TV, doors, and the phone — using RF (which passes through walls) rather than line-of-sight infrared for whole-home control.

Whatever the category, the action plan ends the same way: trial before you recommend. A hands-on trial that documents function with and without the device produces the objective evidence that supports both the recommendation and the funding request.

3 · Implementation of Intervention (Once Funded)

Implementation is 23% — and the parenthetical matters: once funded. You do not order, fit, and deliver equipment until funding is approved and secured. This area covers funding and justification, then the hands-on work of preparing, fitting, mounting, delivering, and training on the technology.^[1]

Funding & Medical Necessity

AT is paid for by different sources, each with a different test of necessity: Medicare and Medicaid (medical necessity), private insurance, vocational rehabilitation (employment necessity), and schools under IDEA (educational necessity).

The letter of medical necessity is central — it ties the device to the diagnosis and functional deficit and explains why a lesser-cost option will not work.^[3] A high-yield funding fact: Medicare coverage of a complex (Group 3) power wheelchair requires the supplier to involve a RESNA-certified ATP in the selection — one reason the credential matters in practice.^[9]

Fitting, Mounting & Delivery

Before delivery, the ATP prepares, assembles, and installs the technology, then performs a safety and function check — verifying the product for safety, function, performance, and quality. At delivery they make fitting adjustments — seat-to-floor height, backrest angle, footrest length, and controls.

When a device such as a speech-generating device is mounted to a wheelchair, the mount (frame clamp, tubing, and plate) must position it for both visual regard and physical access, and a swing-away mount lets it move aside for transfers. A heavy mounted device shifts the chair's center of gravity, so stability and tip risk are checked.^[1]

Training Across Environments

Implementation is not finished until the user — and their caregivers — can operate, maintain, and troubleshoot the device. RESNA frames training as happening in an accessible manner across every environment where the AT is used (home, school, work, community). Teaching basic troubleshooting (power, charging, and connections) and training caregivers are what make use consistent and prevent early abandonment.^[1]

4 · Evaluation of Intervention (Follow-up)

Follow-up is 19% — and it is where many candidates underestimate the exam. The ATP does not hand over a device and walk away: they measure outcomes, reassess over time, and adjust the technology as needs change. This is the step that protects the whole investment by preventing abandonment.^[1]

Measuring Outcomes & Reassessment

Effectiveness is measured by comparing function with and without the device — ideally through documented, hands-on use — plus goal attainment toward the consumer's own goals and qualitative feedback on comfort and impact on daily routines. Independent, reliable use of the device for the target task is a key success indicator; conversely, a client who shows confusion and needs constant instruction signals a poor fit that should send you back to the plan.^[7] Because abilities, goals, and environments change, reassessment is required — it is a built-in phase, not an optional extra.

Preventing AT Abandonment

AT abandonment — a user stopping use of a provided device — is a defining problem of the field; the landmark study found roughly 29% of devices abandoned, most strongly because the user's opinion was not considered in selection and because the user's needs changed.^[10] The prevention strategy is the whole process working together: involve the user (person-centered selection), feature-match to real needs, fit and train properly, and follow up to adjust the AT over time. Follow-up that actually changes the technology — re-fitting, re-training, or re-recommending — is what keeps AT in use.

5 · Professional Conduct

Professional Conduct carries no separate weight, but RESNA integrates it across every content area — so ethics questions can appear anywhere, and they are among the most reliably answerable points on the exam if you know the two governing documents: the RESNA Code of Ethics and the RESNA Standards of Practice.^[2]

The RESNA Code of Ethics

The Code of Ethics is built on eight principles. The ones the exam leans on most: hold paramount the welfare of the person served; practice only within your competence; maintain confidentiality of privileged information; and avoid — or disclose — conflicts of interest. The recurring lesson is that the consumer's interest comes before an employer's margin or a manufacturer's incentive: when those collide, you recommend the equipment best matched to the consumer and disclose any relationship that could bias you.^[2]

Standards of Practice & Funding Conduct

The Standards of Practice operationalize the code. Three are especially testable: you must inform the consumer of all device options AND funding mechanisms regardless of their financial status and support their choice; you must never guarantee results; and you must document the assessment, options, trials, recommendation, and justification.^[2]

When a consumer's goal conflicts with safety, the standards require recommendations that maximize outcomes while minimizing unreasonable risk — so you honestly discuss the concern, document it, and explore alternatives rather than hiding it or abandoning the consumer.

How to Use This Study Guide

Work through the guide one content area at a time. After each one, check it off in the contents to raise your exam-readiness score, then drill the same content in our free practice questions and flashcards — active recall and full-length practice are what turn knowledge into exam-day judgment.

• Weight your time by the blueprint. Assessment and the Action Plan are 29% each (about 58% combined) — spend the most time there, then implementation (23%) and follow-up (19%).
• Reason needs-first. Most items ask what fits the person, task, and environment — not which device is newest. The least restrictive option that meets the need usually wins.
• Master the frameworks. HAAT, SETT, and feature matching are the spine; if you can apply them, most assessment and planning items fall out.
• Know the gates. Implementation is “once funded,” and you trial before you recommend — sequence questions hinge on these.
• Bank the ethics points. The RESNA Code of Ethics and Standards of Practice are reliable points spread across every area — honest, consumer-first, confidential, within competence.
• Then prove it. When a content area feels solid, confirm with our practice questions and read every rationale — including the ones you got right.

Common assistive-technology concepts ATP candidates study and get asked — each answered briefly and backed by an authoritative source (RESNA, the Assistive Technology Act, AOTA, ASHA, the U.S. Access Board, AFB, or the AT literature). Tap any card to test yourself.

ATP Glossary

Key ATP exam terms in one place. Hover any dotted term throughout the guide for its definition; the full list is below.

ATP

Assistive Technology Professional — the RESNA certification (and credential) recognizing competence in analyzing a person's needs, recommending appropriate assistive technology, and supporting its use and follow-up.

RESNA

The Rehabilitation Engineering and Assistive Technology Society of North America — the body that develops and grants the ATP and SMS certifications and the AT Standards of Practice and Code of Ethics.

assistive technology

Any item, equipment, or product system used to increase, maintain, or improve the functional capabilities of a person with a disability (Assistive Technology Act / IDEA definition).

HAAT model

Human, Activity, Assistive Technology, Context — a framework (Cook & Polgar) that models AT as a person doing an activity with a device, all within a context; change one element and the others must be re-balanced.

SETT framework

Student, Environment, Tasks, Tools — a needs-driven, team decision-making framework (Joy Zabala) that defines the student, environment, and tasks before selecting the tool.

feature matching

Comparing the features of candidate AT devices to the person's abilities, the task, and the environment, then selecting the best fit — rather than starting from a preferred product.

functional assessment

Direct observation of the person performing the actual task in context to identify real abilities, barriers, and AT needs — more valid than self-report alone.

person-centered approach

Building the AT plan around the consumer's own goals, values, and preferences, with the consumer as an active decision-maker; central to preventing AT abandonment.

AAC

Augmentative and alternative communication — methods and devices that supplement or replace speech, ranging from gestures and picture boards to high-tech speech-generating devices.

aided AAC

AAC that uses an external tool — a communication board or book (low-tech) or a speech-generating device (high-tech).

unaided AAC

AAC that uses only the body — gestures, sign language, facial expression, and vocalizations — with no external device.

speech-generating device

An SGD — a high-tech AAC device that produces spoken output from selected symbols, words, or typed text, accessed by the user's best selection method.

core vocabulary

A small set of high-frequency words (want, more, go, stop) used across many contexts; AAC layouts prioritize core, supplemented by topic-specific fringe vocabulary.

direct selection

An access method in which the user points to or activates the target directly (touch, mouse, trackball, head pointer, eye gaze, or voice) — fastest when motor control allows.

scanning

An indirect access method in which choices are presented in sequence and the user selects with a switch when the target is highlighted — for users with very limited motor control.

eye-gaze access

An access method that lets the user select on-screen targets by looking at them, using gaze-point calibration; requires adequate eye control.

switch access

Using one or more switches (activated by any reliable movement) to operate scanning AT; the switch is placed at the user's best, least-fatiguing movement.

screen reader

Software that converts on-screen text to synthesized speech or braille output, providing access for people who are blind or have low vision.

optical character recognition

OCR — technology that converts printed text into digital text so a screen reader can read it aloud; a key reading solution for visual impairment.

EADL

Electronic aid to daily living (formerly environmental control unit / ECU) — technology that lets a person with limited movement operate home electronics such as lights, TV, doors, and the phone.

FM system

A hearing assistive technology that wirelessly transmits a speaker's voice to the listener, improving the signal-to-noise ratio in noisy or group settings.

mat evaluation

A hands-on assessment (supine and seated) of range of motion, posture, and flexibility that measures the body and distinguishes flexible from fixed deformities before a seating system is configured.

pressure injury

Localized skin and soft-tissue damage over a bony prominence (commonly the ischial tuberosities and sacrum when seated) caused by sustained pressure and shear; prevented with pressure mapping and a redistributing cushion.

posterior pelvic tilt

The pelvis rotating backward in the chair, the most common and harmful seating malalignment; it leads to sacral sitting, shear, and skin breakdown, so the pelvis is positioned in neutral first.

tilt-in-space

A power-seating function that changes the user's orientation in space while keeping the seat-to-back angle fixed (less shear), used for pressure relief and positioning; recline instead opens the seat-to-back angle.

letter of medical necessity

An LMN — documentation justifying why a specific assistive technology is medically necessary for a particular person, including why a lesser-cost option will not work; central to securing funding.

AT abandonment

When a user stops using a provided device; prevented by involving the user in selection, feature matching, ensuring fit and training, and following up to adjust the AT as needs change.

universal design

Designing products and environments to be usable by the widest range of people without adaptation; differs from AT, which is individualized to one user's need.

RESNA Code of Ethics

RESNA's eight ethical principles for AT professionals — hold paramount the welfare of persons served, practice within competence, maintain confidentiality, and avoid or disclose conflicts of interest.

RESNA Standards of Practice

RESNA's practice standards for AT professionals, covering competent service delivery, informing consumers of all device and funding options, disclosing conflicts, never guaranteeing results, and documentation.

SMS

Seating & Mobility Specialist — a RESNA specialty certification for which the ATP is a prerequisite, focused on complex seating and wheeled mobility.

ATP Study Guide FAQ

References

1. 1.Rehabilitation Engineering and Assistive Technology Society of North America (RESNA). “ATP Certification — Candidate Handbook & Exam Outline.” resna.org. ↑
2. 2.Rehabilitation Engineering and Assistive Technology Society of North America (RESNA). “RESNA Code of Ethics & Standards of Practice.” resna.org. ↑
3. 3.Assistive Technology Act / AT3 Center. “What Is Assistive Technology?.” at3center.net. ↑
4. 4.American Speech-Language-Hearing Association (ASHA). “Augmentative and Alternative Communication (AAC).” asha.org. ↑
5. 5.Joy Zabala. “The SETT Framework.” joyzabala.com. ↑
6. 6.U.S. General Services Administration. “Section 508 — Accessible Technology.” section508.gov. ↑
7. 7.American Occupational Therapy Association (AOTA). “Assistive Technology and Occupational Therapy.” aota.org. ↑
8. 8.American Foundation for the Blind (AFB). “Screen Readers & Screen Magnification.” afb.org. ↑
9. 9.Centers for Medicare & Medicaid Services (CMS). “Power Mobility Devices LCD (L33789) — ATP Requirement.” cms.gov. ↑
10. 10.Phillips, B. & Zhao, H.. “Predictors of Assistive Technology Abandonment.” Assistive Technology / NIH PubMed. ↑
11. 101.StatPearls / National Library of Medicine (NIH). “Assistive Technology in the Workplace / HAAT.” ncbi.nlm.nih.gov, accessed 20 June 2026. ↑
12. 102.American Speech-Language-Hearing Association (ASHA). “Augmentative and Alternative Communication (AAC).” asha.org, accessed 20 June 2026. ↑

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