REVISION OF A PARENT-COMPLETED DEVELOPMENTAL SCREENING TOOL - AGES AND STAGES QUESTIONNAIRES

Examined the Ages and Stages Questionnaires (ASQ), a series of II deve lopmental questionnaires designed to be completed by parents and careg ivers of young children from 4 to 48 months of age. The ASP were recen tly revised and additional psychometric data were gathered. Analyses o n over 7,000 questionnaires indicated high test-retest reliability int erobserver reliability, and internal consistency. Concurrent validity using standardized measures yielded an overall agreement of 85%, with a range of 76-91%, Specificity was high across questionnaire intervals while sensitivity was lower and varied across intervals. Use of paren t-completed screening tools such as the ASQ is attractive in terms of cost-effectiveness, parental involvement, and flexibility in administr ation procedures.