How to Fill Out the ABAS-3 Parent Form: Rating Items and Returning It

To fill out the ABAS-3 Parent Form, rate each item describing an everyday task on a 0-to-3 scale based on how your child actually behaves during normal routines over the past several months, mark the “check if guessed” column for any behavior you haven’t personally seen, complete the demographic section accurately, and return the form to the professional who gave it to you. The whole thing usually takes 15 to 20 minutes.¹

You don’t score the form and you don’t need to buy it. The evaluating psychologist or school psychologist provides it on paper or through the WPS Online Evaluation System, and they handle scoring and interpretation once you send it back.

Before You Start

Check that you have the right version. There are two: a Parent/Primary Caregiver Form for birth through age five, and a Parent Form for ages five through twenty-one.¹ The evaluator selects the version based on your child’s age at testing, so you shouldn’t have to choose, but confirm it matches before you start rating.

Fill in the demographic section carefully. You’ll need your child’s full name, date of birth, and sex; your own name and relationship to the child; and the date you completed the form.² Some forms also ask for the child’s school, grade, race or ethnicity, and any known disability. Double-check the date of birth. An incorrect birth date shifts which age norms are applied to the scores, and that can change the results meaningfully.

Set aside a quiet 20 minutes. You want to answer in one sitting, thinking about your child’s typical behavior rather than a single good day or bad day.

How to Rate Each Item

Every item describes a specific everyday task. Examples in the manual include things like telling others his or her first name when asked, or using a fork without spilling. Your job is to rate how often your child performs that task independently, without being reminded or helped.

Each item uses a four-point scale:³

0 — Is not able. Your child cannot perform the task at all, whether because of age, a physical limitation, or a developmental gap.
1 — Never (or almost never) when needed. Your child has the ability but essentially never does it when the situation calls for it.
2 — Sometimes when needed. Your child does it on some occasions but not reliably.
3 — Always (or almost always) when needed. Your child consistently performs the task without prompting.

The gap between 0 and 1 matters more than it looks. A 0 means the skill genuinely isn’t there yet. A 1 means your child has the capability but doesn’t use it. Think about which is true before marking either.

A common mistake is rating based on what you believe your child could do if pushed, rather than what they actually do during normal routines. Rate the everyday reality. If your child can tie their shoes when you sit down and coach them but never does it on their own before school, that’s closer to a 1 than a 3.

Base your ratings on the past several months, not on a single recent incident. The scoring assumes you’re describing typical behavior, not a snapshot.

When You Haven’t Seen the Behavior

Some items describe situations your child hasn’t encountered. Maybe they’ve never used a microwave because your household doesn’t allow it, or they’ve never crossed a street alone because you live in a rural area. For these items, mark the “check if guessed” column and give your best estimate based on everything else you know about your child.²

Don’t leave items blank. A blank item is worse than a thoughtful estimate. The ABAS-3 manual flags any skill area with four or more guessed items so the scorer can interpret that area with extra caution, and research on this question found that scores remain statistically valid even with some guessed answers.⁴ The system is built to handle honest estimates. Use the column when you need it.

What the Items Cover

Items are grouped into skill areas, which roll up into three broad domains: Conceptual, Social, and Practical.⁵ Knowing what each area is asking about helps you rate more accurately.

Conceptual

Communication: how your child expresses needs, listens to and understands others, and holds conversations, including nonverbal communication like gestures and facial expressions.⁶
Functional Academics, or Pre-Academics for ages 0–5: whether your child uses skills like telling time, counting money, reading signs, or recognizing letters and numbers in real situations.
Self-Direction: making independent choices, staying on task, showing self-control, and taking responsibility.

Social

Social: interacting with family, peers, and adults, including taking turns, showing empathy, and following social rules.
Leisure: engaging in play and recreational activities, choosing hobbies, and using free time.

Practical

Self-Care: eating, dressing, bathing, personal hygiene.
Home Living: helping with household tasks and taking care of personal belongings.
Community Use: navigating public spaces, showing interest in activities outside the home, and for older children, using public transportation or knowing how to get help in an emergency.
Health and Safety: following safety rules, avoiding dangers, responding appropriately to injuries or illness.
Work: completing assigned chores or job tasks responsibly. Scored optionally for older adolescents who hold a job or perform structured chores with real responsibility.

Two version-specific points worth knowing while you rate. For infants under one year on the Parent/Primary Caregiver Form, three areas are left blank because those skills haven’t begun to develop yet: Community Use, Functional Pre-Academics, and Home Living.⁶ And the 0–5 form includes a Motor area covering crawling, walking, and grasping objects; Motor is required through age five and becomes supplemental after that.⁵

Returning the Form

Hand the finished form back to the professional who gave it to you. If you received a paper copy, return it in person or by whatever secure method the office specifies. If you were sent a link to the WPS Online Evaluation System, complete it on a computer or tablet from home; your responses go directly into the scoring platform.¹

For a school evaluation, the school psychologist collects it. For a private clinical evaluation, the coordinating psychologist or their office does. Don’t hold onto the form longer than necessary. The evaluation often can’t move forward until your ratings are in.

What Happens After You Turn It In

You won’t score the form yourself, and you’re not expected to interpret it. The ABAS-3 carries a Level C qualification requirement, meaning only professionals with advanced training in test interpretation can purchase and score it.¹ The professional enters your ratings into scoring software or lets the online platform score automatically, then produces a report with scaled scores for each skill area, standard scores for the three domains, and a General Adaptive Composite representing overall adaptive functioning.⁵

You should expect a follow-up meeting where the evaluator walks you through the results and gives you a written report. Ask for that report in writing; it’s yours to keep and share with other providers, therapists, or school personnel involved in your child’s care.

1
WPS. ABAS-3 Adaptive Behavior Assessment System, Third Edition
2
Western Psychological Services. ABAS-3 Adaptive Behavior Assessment System, Third Edition
3
FITBIR – NIH. Adaptive Behavior Assessment System III
4
Hogrefe eLibrary. To Guess or Not to Guess? A Study of the Impact of Guessed Answers of the Adaptive Behavior Assessment System, Third Edition
5
TSLAT. Adaptive Behavior Assessment System – Third Edition
6
Western Psychological Services. Interpretive Report Parent/Primary Caregiver Form Ages 0-5