ASQ-3 Calculator 2026 — Developmental Screening Scoring
Score the Ages and Stages Questionnaires Third Edition instantly. Calculate domain scores across all five developmental areas and compare them against published cutoff points for children aged 1–66 months.
Score the Ages & Stages Questionnaires
Select the child’s age interval, then rate each question as ‘Yes’ (10 pts), ‘Sometimes’ (5 pts), or ‘Not Yet’ (0 pts). The calculator tallies each of the five domains and flags scores that fall below or near the cutoff.
ASQ-3 Scoring Sheet
Enter the child’s age and rate each developmental question
Choose the interval matching the child’s age. For example, use the 24-month questionnaire for children aged 23m0d to 24m30d.
ASQ-3 Results
Domain scores and cutoff comparison
Select an age interval, then rate each of the 30 questions above and click Calculate ASQ-3 Scores to see the results.
ASQ-3 Interval Cutoffs
Representative cutoff scores for the 24-month interval (used in this calculator’s default example). Full cutoff tables for all 21 intervals are published in the official ASQ-3 manual by Squires & Bricker.
| Domain | Cutoff (24-mo) | Monitoring Zone |
|---|---|---|
| Communication | 33.75 | 33.75–43.75 |
| Gross Motor | 39.74 | 39.74–49.74 |
| Fine Motor | 31.45 | 31.45–41.45 |
| Problem Solving | 35.77 | 35.77–45.77 |
| Personal-Social | 33.13 | 33.13–43.13 |
| Scoring per question | Yes = 10 | Sometimes = 5 · Not Yet = 0 |
| Maximum domain score | 60 | 6 questions × 10 points each |
| ASQ-3 age range | 1–66 months | Across 21 age intervals |
ASQ-3 Scoring FAQ
Everything parents, health visitors, and early years practitioners ask about scoring the Ages and Stages Questionnaires.
The Ages and Stages Questionnaires Third Edition (ASQ-3) is a parent-completed developmental screening tool used worldwide to identify young children aged 1 to 66 months who may need further assessment. It screens five developmental domains: Communication, Gross Motor, Fine Motor, Problem Solving, and Personal-Social.
Each of the five domains contains six questions. Parents answer ‘Yes’ (10 points), ‘Sometimes’ (5 points), or ‘Not Yet’ (0 points). Domain scores therefore range from 0 to 60. These are compared against published cutoff points to flag children who may need referral or monitoring.
Cutoff scores vary by age interval and domain. A score below the cutoff indicates the child should be referred for further diagnostic assessment. A score in the ‘monitoring zone’ (typically within 10 points above the cutoff) suggests rescreening in 2–3 months. Scores well above the cutoff indicate typical development for that domain.
Each ASQ-3 questionnaire covers a specific age window. For example, the 24-month questionnaire is used for children aged 23 months 0 days to 24 months 30 days. This calculator automatically selects the correct interval based on the child’s date of birth or current age in months.
Yes. The ASQ-3 was designed specifically for parents and caregivers to complete at home. It takes about 10–15 minutes and uses everyday activities that parents naturally observe. However, results should always be interpreted by a qualified health professional such as a health visitor, GP, or paediatrician.
No. The ASQ-3 is a screening tool only — it identifies children who may benefit from further assessment but does not diagnose developmental disorders. Children flagged by the ASQ-3 should be referred for comprehensive evaluation by appropriate specialists before any diagnosis is made.
A below-cutoff score on one or more domains suggests the child should be referred for a more detailed developmental assessment. This does not mean they have a disorder — it simply means further investigation is recommended. Your health visitor or GP can arrange referrals to paediatric services, speech and language therapy, or occupational therapy as appropriate.
The ASQ:SE-2 (Social-Emotional, Second Edition) is a companion screening tool that specifically focuses on a child’s social and emotional behaviour. It is often used alongside the ASQ-3 to give a fuller picture of a child’s development. It covers a similar age range but uses different questions and cutoff scores.