Ages and Stages Questionnaire

1. Indications
   1. Development screening for age 1 month up to 5.5 years old (19 questionnaires)
2. Description
   1. Each questionnaire contains 6 questions each in 5 areas (30 questions total)
      1. Communication
      2. Gross motor
      3. Fine motor
      4. Problem solving
      5. Personal-social
   2. Each question asks if the child is performing the given skill
      1. Yes: 10 points
      2. Sometimes: 5 points
      3. Not yet: 0 points
   3. Matches well child clinic visit ages
      1. Covers ages 4-60 months
      2. Total questionnaires: 19
3. Advantages
   1. Written at 4-6 grade level
   2. Parents complete in 10-20 minute test
   3. Uses pictures and directions
   4. Clinicians score in 1-5 minutes
   5. Available in English, Spanish, Korean, and French
4. Scoring
   1. Each of the 5 areas is scored (0-10 points each for 6 questions)
   2. Each area can score 0-60 points
   3. Normal scores are >20-35 depending on the area
5. Efficacy
   1. Test Sensitivity: 85% (lower at age 4 months)
   2. Test Specificity: 86%
   3. Initial tests with more than 12,000 children of various ethnic and socioeconomic backgrounds
   4. Validated
6. Resources and References
   1. Ages and Stages
      1. http://agesandstages.com
   2. Paul H. Brookes (Test Publisher)
      1. http://www.brookespublishing.com
   3. Developmental and Behavioral Screening
      1. http://www.dbpeds.org/articles/dbtesting