Ages and Stages

By: Amanda Falko

Authors: Jane Squires & Diane Bricker

With assistance from: Elizabeth Twombly, Robert Nickel, Jantina Clifford, LaWanda Potter, Rob Hoselton, Linda Mounts, & Jane Farrell


Published By: PAUL H. BROOKES Publishing Company

Published in 2009

  • First revision was in 1991
  • Second revision was in 1999

What is the ASQ-3?

The ASQ-3 is a series of questionnaires to identify whether a child may be at risk for a developmental delay.


There are 21 Questionnaire intervals

  • 2, 4, 6, 8, 9, 10, 12, 14, 16, 18, 20, 22, 24
  • 27, 30, 33, 36 (Spaced 3 months apart)
  • 42, 48, 54, 60 (Spaced 6 months apart)


There are 6 questions in each area


Questions are in Hierarchical order

  • The questions range in difficulty from about 75 developmental quotient (DQ) to a 100 DQ. The DQ is calculated by taking a skill age level divided by the age of the child. For example:
Question #1 and #2 are approx. 12 month skills (DQ=75; 12mo/16mo)

Question #3 and #4 are approx. 14 month skills (DQ=88; 14mo/16mo)

Question #5 and #6 are approx. 16 month skills (DQ=100; 16mo/16mo)

Developmental - Intellectual/ Cognitive Test

Catches developmental delays


Measures: Communication, Gross and Fine Motor Skills, Problem Solving, and Personal-Social


Communication: Focuses on language skills-both what the child understands and what he or she can say.

Gross Motor: Focuses on large muscle movement and coordination

Fine Motor: Focuses on small muscle movement and coordination

Problem Solving: Focuses on the child's play with toys

Personal-Social: Focuses on the child's interactions with toys and other children


Age Level: 1 month- 5 ½ years old

The ASQ-3 can be completed by 5 different methods:

  • Mail-Out
  • Online
  • Telephone Interview
  • Home visit
  • On-Site

Requirements for Testing:

  • Each Questionnaire is completed by parents or caregiver
  • Takes about 10-15 minutes
  • Comes with a kit full of materials
This material kit consist of toys, books, and other items to encourage a child's participation and support effective, accurate administration of the questionnaires.


All the material is age appropriate, gender neutral, and culturally sensitive

Some of the materials include:

  • Clothing with button/zipper
  • baby bottle
  • book with pictures
  • Chair
  • scissors
  • coloring book
  • cup
  • doll or stuffed animal
  • fork
  • pencil
  • wagon, stroller, or other toy on wheels
  • small toy, easy to grip
  • tooth brush and tooth paste
  • soap, water, and/or towel

Scoring and Results:

Scoring is done by hand. It comes with an Information summary sheet.

This form provides space for scoring, comments, and basic information.


Answers are in Yes, Sometimes, and Not Yet form.

They are later converted to 10, 5, 0 points and are totaled for each developmental area.

These five area scores are then compared with empirically derived cutoff points shown on the bar graph on the Information Summary Sheet.