AAC Assessment Guide Parents Can Use Confidently

A child who cannot reliably express a choice, protest, question, or story is not “not ready” for AAC. They need a communication system that gives them more ways to be heard. This AAC assessment guide parents can use is designed to make the process clearer, from the first referral to using a new app or device in everyday life.

AAC, or augmentative and alternative communication, includes communication apps, speech-generating devices, picture-based systems, alphabet boards, and other tools that support spoken language or provide another way to communicate. An assessment is not a test your child must pass. It is a practical process for identifying the access methods, vocabulary, and technology that can help them communicate with greater independence.

What an AAC Assessment Is Designed to Find

A strong AAC assessment looks beyond whether a child can press a button on a screen. It considers how they communicate now, what they want to communicate, where breakdowns happen, and which supports will work across home, school, therapy, and community settings.

The goal is not to find the most advanced device or the app with the most features. The goal is to find an effective communication solution that fits the person. A system must be accessible, reliable, and meaningful enough to use when it matters - during a meal, in class, at a medical appointment, while playing, or when something is wrong.

An evaluator may assess receptive language, expressive communication, literacy skills, vision, hearing, motor access, attention, sensory needs, and positioning. They should also ask about interests, routines, cultural and language needs, and the people who will support AAC use. A child who loves trains, jokes, cooking, or video games needs language for those real interests, not only generic therapy activities.

Who Can Complete an AAC Evaluation?

A speech-language pathologist often leads the evaluation, particularly one with AAC experience. Depending on the person’s needs, the team may also include an occupational therapist, physical therapist, teacher of students with visual impairments, assistive technology specialist, educator, physician, or rehabilitation professional.

Parents and caregivers are essential members of that team. You see communication attempts that may not appear in a clinic: a look toward the pantry, a repeated sound, a hand movement, a refusal at bedtime, or excitement when a familiar person enters the room. These observations help the evaluator understand the person behind the assessment data.

If possible, seek a professional who evaluates more than one product line and is comfortable considering low-tech, high-tech, and multiple access options. An evaluation should be feature-matched to the communicator’s needs rather than built around one preferred brand or device.

How to Prepare for an AAC Assessment

You do not need to teach your child to use AAC before the appointment. In fact, waiting for a person to demonstrate a specific skill can delay communication support. There are no prerequisites for AAC, including speaking, pointing accurately, recognizing pictures, or showing cause and effect in a particular way.

Preparation can still make the evaluation more useful. Bring or share recent therapy reports, school documents, medical information that affects access, and a list of communication tools already tried. If your child uses gestures, signs, a communication book, or an app, take photos or videos that show how they use it naturally.

It also helps to write down a few moments when communication is especially hard. Be specific. Perhaps your child becomes frustrated when a preferred activity ends, cannot participate in classroom discussions, has trouble telling you about pain, or depends on adults to guess every choice. These examples connect AAC recommendations to daily participation.

Consider sharing the following information with the evaluator:

• The words, messages, people, activities, and topics that matter most to your child
• How your child currently says yes, no, more, stop, help, or “I don’t know”
• Whether communication changes across settings, partners, or times of day
• Any movement, vision, hearing, fatigue, or sensory factors that affect access
• Languages used at home and by important communication partners

What Happens During the Evaluation

An AAC assessment may take one session or several. Some people need breaks, familiar partners, or multiple opportunities to show what they can do. A good evaluator adjusts the pace and does not mistake fatigue, anxiety, or an unfamiliar setting for a lack of communication ability.

The clinician will likely observe existing communication and introduce several AAC options. These may include paper displays, communication boards, tablet-based AAC apps, dedicated speech-generating devices, or alternative access tools. The person may try direct touch, keyguards, switches, eye gaze, head tracking, scanning, or partner-assisted methods.

Trial use matters. A device that appears simple may be difficult to access accurately. A more advanced system may offer better vocabulary growth but require adjustments to layout, button size, voice output, or mounting. The right recommendation often comes from seeing how a person performs meaningful tasks with different tools, not from a single brief demonstration.

The evaluator should also model language on the AAC system. This is sometimes called aided language input or AAC modeling. Rather than asking the child to prove they can find words independently, the communication partner uses the system while speaking. That approach shows where words are located and demonstrates that AAC is a normal part of conversation.

Questions Parents Should Ask

The best questions focus on real-world use, not only device specifications. Ask how the recommended system will support communication at home and school, how it can grow with your child, and what training adults will receive.

You may also ask: How will my child access the system when they are tired or positioned differently? Can it support both quick messages and more detailed language? How will bilingual communication be handled? What low-tech backup should travel with us? If speech increases, how will AAC continue to support participation rather than be removed?

Ask for a clear explanation of the evidence behind the recommendation and what was observed during trials. If insurance funding is involved, ask what documentation is needed, who submits it, and what the timeline may look like. Funding requirements vary, and a recommendation can be clinically appropriate even when the paperwork process is lengthy.

Choosing Tools That Support Growth

A communication system should offer language for more than requesting snacks or favorite toys. Requesting is valuable, but people also need words to refuse, comment, ask questions, tell stories, repair misunderstandings, and connect socially.

For many communicators, a system with core vocabulary is a strong foundation. Core words are flexible, high-frequency words such as “go,” “want,” “not,” “help,” “like,” and “you.” Combined with personalized words for names, favorite places, cultural foods, activities, and routines, they create language that can be used across settings.

There are trade-offs. Smaller grids can be easier to see or touch, but they may require more page changes and limit language available on one screen. Larger grids provide more vocabulary and can support efficient language development, but they may need visual supports, careful teaching, or alternative access. The best fit depends on the individual, and settings can be adjusted over time.

Do not assume a dedicated device is always better than an AAC app, or that an app is always enough. A dedicated speech-generating device may offer durability, stronger speakers, insurance funding pathways, and a clear communication-focused purpose. An app on a tablet can be portable, familiar, and flexible. The decision should reflect access needs, environment, reliability, funding, and how the person will use the system every day.

After the Assessment: Make AAC Part of Daily Life

The assessment report is a starting point, not the finish line. Consistent communication growth happens when AAC is available and modeled throughout the day. Keep the system within reach, charged, and included in ordinary interactions. If it only appears during therapy, it cannot become a dependable voice.

Adults do not need to turn every conversation into a lesson. Start by modeling a few useful words during genuine activities. While getting ready to leave, model “go,” “wait,” and “not yet.” During a game, model “my turn,” “again,” and “fun.” When something goes wrong, model “help,” “stop,” and “different.” Respond to every communication attempt, including attempts that are imperfect or unexpected.

Coordinate with school staff so important vocabulary, access settings, and support strategies remain consistent. The system should travel between environments whenever possible. A simple printed backup board is also valuable for battery failures, water activities, outdoor play, or situations where a device is unavailable.

AAC can change as motor skills, literacy, interests, routines, and communication goals change. Revisit the system when access becomes difficult, vocabulary no longer reflects the person’s life, or the device is not being used outside structured sessions. Innovation in AAC apps and devices creates more options, but the most powerful feature remains meaningful access to language.

Your child does not need to earn a voice. Start with the communication opportunities they have today, give them language that reflects who they are, and let AAC become one more reliable way they can participate, connect, and lead.