If you work with older learners, adolescents, or adults in ABA, the AFLS tends to become more and more relevant over time.
Why?
Because eventually the question changes.
We stop asking only, What language or learning skill should we teach next?
And we start asking:
- Can this person get dressed independently?
- Can they make a meal?
- Can they shop for what they need?
- Can they cross a street safely?
- Can they manage money?
- Can they hold a job?
- Can they live with another person?
That is where the Assessment of Functional Living Skills, or AFLS, really earns its place.
The AFLS is a criterion-referenced assessment, skills-tracking system, and curriculum guide focused on functional independence. Across six protocols, it covers more than 1,900 skills in 66 skill areas, from basic self-care to vocational and independent living skills.
But there is one thing I want clinicians to understand right away:
The AFLS is not a standardized, norm-referenced outcome measure.
It does not give you a percentile. It does not tell you how a learner compares with same-age peers. It does not give you a standard score. And it was never designed to.
What it does tell you is much more practical:
What can this learner do today? What should we teach next? And are those skills becoming more independent over time?
Used for that purpose, it can be incredibly useful.
What Is the AFLS?
The Assessment of Functional Living Skills was developed by James W. Partington, PhD, BCBA-D, and Michael M. Mueller, PhD, BCBA-D, and first published in 2012. The publisher describes it as a criterion-referenced skills assessment tool, tracking system, and curriculum guide. That description is actually very accurate.
Each protocol includes skills arranged by increasing difficulty, criteria for scoring those skills, and a tracking grid that allows teams to visualize repeated administrations over time. The companion AFLS Guide includes task analyses, teaching suggestions, prompting strategies, and guidance on selecting goals and building programs.
So unlike an assessment that simply gives you a result and then leaves you to figure out what to do with it, the AFLS is designed to move directly into intervention. That is one of its biggest strengths.
The Six AFLS Protocols
The AFLS is divided into six protocols. You do not need to administer all six for every learner. That would usually be unnecessary. Instead, you choose the protocols that match the learner’s current needs and stage of independence.
Basic Living Skills
This protocol includes:
- Self-Management
- Basic Communication
- Dressing
- Toileting
- Grooming
- Bathing
- Health, Safety, and First Aid
- Nighttime Routines
These are the foundational daily living skills that support everything else.
For some learners, this is where the most meaningful gains happen.
- Independently brushing teeth.
- Getting dressed.
- Following a nighttime routine.
- Recognizing basic safety concerns.
- These may not sound dramatic, but for families, they can change daily life.
Home Skills
This includes:
- Meals at Home
- Dishes
- Clothing and Laundry
- Housekeeping and Chores
- Household Mechanics
- Leisure
- Kitchen
- Cooking
This is where the AFLS starts to move beyond self-care and into functioning within a household.
- Can the learner prepare food?
- Clean up after themselves?
- Do laundry?
- Participate in household responsibilities?
These are the kinds of skills that matter more and more as a learner gets older.
Community Participation Skills
This protocol covers:
- Basic Mobility
- Community Knowledge
- Shopping
- Meals in Public
- Money
- Phone
- Time
- Social Awareness and Manners
These skills are about navigating life outside the home.
- Crossing a street.
- Ordering food.
- Using money.
- Knowing how to behave safely and appropriately in public.
Again, these are not abstract skills.
They are the building blocks of independence.
School Skills
This includes:
- Classroom Mechanics
- Routines and Expectations
- Meals at School
- Social Skills
- Technology
- Common Knowledge
- Core Academics
- Applied Academics
This protocol looks at functioning within educational settings, from classroom routines to applied academic skills.
Vocational Skills
This is the largest protocol, with 18 skill areas.
It covers things like:
- Job Search
- Interview Skills
- Workplace Safety
- Coworker Relations
- Office Skills
- Computer Skills
- Retail
- Restaurant Skills
- Warehouse Skills
- Tools
- Trades and Construction
- Landscaping
For transition-age learners, this can become a very practical roadmap.
Not just, Can this person work?
But:
What parts of work are already in place, and what still needs to be taught?
Independent Living Skills
This protocol includes:
- Organizational Skills
- Self-Care
- Maintenance and Cleaning
- Mechanics and Repairs
- Community Travel
- Transportation
- Kitchen Tools and Appliances
- Food and Meal Planning
- Money Management
- Independent Shopping
- Personal Management
- Safety
- Problem Solving
- Social Interactions
- Living With Others
- Interpersonal Relationships
This is the protocol that starts asking some of the biggest questions about adult independence.
- Can the learner manage daily responsibilities?
- Can they problem-solve?
- Can they navigate transportation?
- Can they live with a roommate?
- Can they make decisions safely?
The six protocols together span a very wide range of functional skills, but most learners only need a subset at any given point.
Who Is the AFLS For?
The publisher describes the AFLS as appropriate from early elementary age through adulthood, and WPS lists the range as age 2 and up. But I think the content tells you more than the age range does.
The AFLS becomes especially useful as a learner gets older and the treatment conversation shifts toward functional independence. Many Home, Community, Vocational, and Independent Living skills are things we would not expect a young child to do yet. So while the tool technically spans a broad age range, it often becomes increasingly valuable during later childhood, adolescence, and adulthood. The publisher also states that special credentials are not required to administer and score the AFLS, although the person using it should know the learner well and understand the Guide and protocol.
In ABA settings, the BCBA will usually direct the assessment and programming, with technicians, teachers, caregivers, and other team members contributing observation and context.
How AFLS Scoring Works
This is another place where clinicians sometimes oversimplify.
You will often hear:
“The AFLS uses a 0-to-4 scale.”
That is mostly true, but not completely. Many items are scored from 0 to 4. Some are scored from 0 to 2. And the criteria are written specifically for each skill. There is not one universal definition of what a 1, 2, 3, or 4 means across the entire assessment. That matters. The score depends on the behavior described in that particular item. Higher scores generally reflect stronger mastery. Mid-range scores may reflect partial proficiency. A score of 0 indicates the skill is not yet present at the level described. But the scoring criterion for each item is the authority.
That is why I always encourage teams to actually read the scoring language rather than assume they know what the number means.
Score From Evidence, Not Impression
There are three habits that make AFLS data much more trustworthy.
1. Use More Than One Source of Information
The AFLS can draw from:
- Direct observation
- Interview
- Task performance
If you can directly test a skill, test it. If you cannot, ask the people who see it regularly. And if a score comes from report rather than direct observation, know that. That distinction helps with interpretation later.
2. When You Are Unsure, Be Conservative
This is a simple rule, but it matters. If you are not sure whether a learner meets a criterion, score conservatively. Why? Because an inflated baseline creates two problems. First, it can hide teaching opportunities. Second, it makes future progress harder to see. A baseline should reflect what the learner can reliably do now—not what we hope they can do or what they sometimes do on a good day.
3. Score the Whole Skill Area
This is another one I see teams shortcut. It can be tempting to score only the items you already know about. But because AFLS skills are arranged in a sequence, incomplete scoring can create gaps right where you need information most. A complete skill area helps you see:
- What is mastered?
- Where does performance start to break down?
- What is the next reasonable target?
That is much more useful for programming.
The Tracking Grid Is One of the Best Parts
One of my favorite things about the AFLS is the visual tracking grid. Each administration is recorded over time, traditionally using different colors. On the digital platform, the same idea is carried forward with color-coded assessment periods. The result is very easy to understand. You can literally see the grid filling in as skills improve. And this matters because not every family wants a statistics lesson.
Sometimes the clearest way to communicate progress is to say:
- Look at what your child could do six months ago.
- Look at what they can do now.
That kind of visual can make progress much easier to understand.
How AFLS Scores Become Goals
The AFLS was designed to function as a curriculum guide, so the transition from assessment to treatment is fairly direct.
Within a skill area, I am usually looking for:
- Skills that are partially present
- Skills that are inconsistent
- Skills just beyond the learner’s current level
- Skills that actually matter to the family and the learner’s daily life
Then I ask:
- Is this socially meaningful?
- Will this increase independence?
- Is this the right priority right now?
Because just because a skill appears on an assessment does not automatically make it the right goal. The learner’s life has to stay at the center of the decision. The AFLS can tell us what comes next in the sequence. Clinical judgment tells us whether it should come next for this person.
AFLS and ABLLS-R: Do You Use One After the Other?
The AFLS is often described informally as “the ABLLS-R for older learners.” That is a useful shorthand, but it is not quite accurate. The publisher describes the AFLS as an extension of the ABLLS-R, and the two can be used at the same time. The ABLLS-R focuses more heavily on foundational language, learner, academic, self-help, and motor skills. The AFLS extends much further into functional independence.
That means there is no magical age when a learner “graduates” from the ABLLS-R and moves to the AFLS. A younger learner may still need AFLS Basic Living goals. An adolescent may still have ABLLS-R language targets. Think of them as overlapping tools. Not Level 1 and Level 2. The right combination depends on what the learner needs.
What About Digital Scoring?
The current digital platform is CR Assessments, which supports both the ABLLS-R and AFLS. It allows teams to score, track progress, generate reports, manage multiple learners, and export goals. Paper protocols are still available as well. For a larger organization, digital scoring can make longitudinal tracking much easier. For a smaller practice, paper may still work perfectly well. The important part is less about the platform and more about scoring consistently over time.
Is the AFLS a Standardized Assessment?
This is where terminology matters.
The AFLS is criterion-referenced.
That means it compares a learner’s performance with a written criterion for each skill.
It does not compare the learner with a normative sample.
So it does not produce:
- Standard scores
- Percentile ranks
- Age equivalents
That is not a flaw.
It is a design choice.
And it determines what conclusions you can make from the assessment.
What Do We Know About Reliability and Validity?
For a long time, the AFLS had very limited published psychometric research behind it. That changed in 2026. A large study in Behavioral Interventions used platform data from more than 41,000 individuals and nearly 90,000 administrations of the ABLLS-R and AFLS.
The study reported:
- Excellent internal consistency across most content areas
- Fair to excellent test-retest reliability
- A strong correlation between total ABLLS-R and AFLS scores
- Known-groups validity, with expected differences between individuals with and without intellectual disability
The authors concluded that the measures showed strong psychometric properties supporting their use in intervention planning and progress monitoring. That is important evidence. But I would still keep two caveats in view. First, one of the authors is an AFLS co-author and others are affiliated with CentralReach, so this is publisher-affiliated validation rather than fully independent replication. Second, reliability and validity do not turn the AFLS into a norm-referenced assessment. It remains criterion-referenced. That distinction still matters clinically and for payer requirements.
What Do Payers Think About the AFLS?
This is where things can get confusing. Some payers accept the AFLS as a treatment-planning or progress-monitoring tool.Others require a separate standardized, norm-referenced adaptive measure. And some specify particular outcome measures by name. For example, Indiana Medicaid materials list the AFLS among recognized instruments for treatment planning. Blue Cross Blue Shield of Michigan includes the AFLS among treatment-progress measures, but separately asks for updated standardized adaptive measures at reauthorization. Kansas Medicaid categorizes the AFLS as a skills-based assessment rather than in the same category as norm-referenced adaptive measures. TRICARE takes a different approach entirely. Its Autism Care Demonstration requires a defined set of outcome measures, including the Vineland-3, and does not list the AFLS as a substitute.
So the practical lesson is simple:
Do not assume that because the AFLS is clinically useful, it satisfies every payer’s outcome-measure requirement.
Check the plan. The AFLS may be excellent for showing what is being taught and how functional skills are changing.
But if the payer is asking:
How does this learner compare with same-age peers?
You need a norm-referenced measure for that question.
What the AFLS Does Really Well
The AFLS has some very clear strengths.
- It goes deeply into functional independence.
- It helps teams identify the next teachable skill.
- It connects assessment directly to curriculum.
- It creates a progress picture that families can understand.
- And it focuses on skills that matter in real life.
That last point matters most to me. The closer our assessment gets to answering: “What will help this person live with more independence?” the more useful it becomes.
Where the AFLS Has Limits
It also has limits.
- The AFLS does not tell us how a learner compares with peers.
- Scoring depends on the administrator’s judgment against written criteria.
- Different raters can score the same skill differently.
- Staff turnover can introduce scoring drift over time.
- There is no official single administration-time estimate, and a full multi-protocol assessment can take multiple sessions.
- It is also currently available in English only.
None of that means the AFLS is a poor assessment. It means we need to use it for the questions it was designed to answer.
Where Objective Measurement Adds Another Perspective
The AFLS gives us very valuable information about functional skill development. But it gives us one type of information. A criterion-referenced skills inventory tells us whether a learner can meet a written criterion. It can show us which functional skills are present, emerging, or absent. What it does not provide is a peer-referenced score or a performance-based measure collected under standardized conditions. And that is why I think the strongest clinical picture usually comes from multiple kinds of measurement.
The AFLS can tell us: What functional skill is changing?
A norm-referenced adaptive measure can tell us: How does overall adaptive functioning compare with same-age peers?
And an objective, standardized measure can contribute another independent source of developmental information.
Those are different questions.
We should not expect one instrument to answer all of them.
Frequently Asked Questions
What is the AFLS assessment?
The AFLS, or Assessment of Functional Living Skills, is a criterion-referenced assessment, skills-tracking system, and curriculum guide focused on functional independence.
It covers more than 1,900 skills across 66 skill areas and six protocols: Basic Living, Home, Community Participation, School, Vocational, and Independent Living.
What age is the AFLS for?
The publisher describes it as appropriate from early elementary age through adulthood, while WPS lists age 2 and up.
In practice, many of the protocols become increasingly useful as a learner gets older and treatment goals shift toward greater independence.
How is the AFLS scored?
Most skills are scored from 0 to 4, while some use a 0-to-2 scale.
Each item has its own written scoring criteria.
Scores may be based on direct observation, interview, and task performance, and repeated administrations can be tracked visually on the AFLS grid.
Is the AFLS standardized?
The AFLS is criterion-referenced rather than norm-referenced.
It measures performance against written skill criteria instead of comparing a learner with a normative sample.
It therefore does not produce standard scores or percentile ranks.
What is the difference between the ABLLS-R and AFLS?
Both are criterion-referenced tools developed within the Partington assessment system.
The ABLLS-R focuses more on foundational language, learner, academic, and early self-help skills.
The AFLS extends further into functional independence across adolescence and adulthood.
They can be used together rather than as strictly sequential assessments.
How long does the AFLS take?
There is no single official administration time.
How long it takes depends on the learner, the number of protocols being used, and how familiar the administrator is with the learner.
A full assessment across several protocols may require multiple sessions.
Who can administer the AFLS?
According to the publisher, special credentials are not required.
The person administering it should know the learner well and understand the Guide and protocol.
In ABA settings, the BCBA typically directs the assessment and programming while technicians, caregivers, teachers, and others contribute observations.
The Takeaway
The AFLS is most useful when we use it for exactly what it was built to do.
Find the next functional skill.
Teach it.
Track it.
And show the learner and family what has changed.
That is a very different job from telling us where someone falls compared with same-age peers.
And that distinction matters.
Score from evidence.
Be conservative when you are unsure.
Complete enough of the skill area to understand the learner’s actual profile.
Choose goals because they will make life more independent—not simply because they are next on the page.
And when you need a broader picture of outcomes, pair the AFLS with other forms of measurement that answer different clinical questions.
The AFLS does not need to be everything.
It is already very good at what it was designed to do: help us turn assessment into meaningful, functional progress.
