ASQ-3′s high validity and reliability have been proven by extensive research to determine the psychometric properties of the screener. These results support the overall usefulness of ASQ-3 to discriminate between children with developmental delays and those who appear to be developing typically.
- The validity of ASQ-3 has been evaluated extensively. The NEW, unparalleled research sample includes 15,138 children that mirror the U.S. population in terms of race, ethnicity, and socio-economic groups.
- The concurrent validity (measured by comparing the percentage of agreement between the results of the parent-completed ASQ-3 questionnaires with the results of professionally administered standardized assessments) ranged from 74% for the 42-month ASQ-3 questionnaire to 100% for the 2-month and 54-month questionnaires, with 86% overall agreement. Concurrent Validity for ASQ-3 questionnaire Intervals.
- The sensitivity* of ASQ-3, or the ability of ASQ-3 to correctly identify those children with delays, ranged from 75% for the 6-month questionnaire to 100% for the 4-month, 14-month, 54-month, and 60-month questionnaires, with 86%overall agreement.
- The specificity* of ASQ-3, or the ability of ASQ-3 to correctly identify typically developing children, ranged from 70% for the 14-month questionnaire to 100% for the 2-month, 16-month, and 54-month questionnaires, with 85%overall agreement.
*Given the complexity of measuring child development, the American Academy of Pediatrics considers high quality developmental screening tests to have sensitivities and specificities of 70% to 80%.
For more detailed information, download the ASQ-3 Technical Report.
