Compare Screening Tools: Validity Properties Chart

Parental reports of their child’s skills are accurate predictors of developmental delay. And validated screening tools save time by focusing the visit and organizing the concerns up front.

But which tool is right for you?

Below is a chart of the more widely used and discussed screening tools for your review. Click on the tool names for additional details.

  Ages and Stages Child Development Inventories Denver II Parents’ Evaluation of Developmental Status
Cost $199 for each language, unlimited CD download $72/25 forms to start, then $1/screen $114 for 100 forms and 1 kit $60 for 100 survey forms and score sheets, then 30¢/survey
# of Items 30 300 125 total 10
Time: Parent Completion 10-20 minutes 30 minutes 0 5 minutes
Time: Provider Score and Interpret 1-5 minutes 10 minutes 20 minutes 2 minutes
Sensitivity 72% 80% 56-83% ‡ 74-79%
Specificity 86% 96% 43-80% ‡ 70-80%
Age range 4 months-5 years 15 months- 6 years 2 weeks-6 years 0-8 years
Year of validation 1991-1998 1995 Before 1990 1997
Variety of survey forms 19 age-based forms Single reusable booklet for all ages Single form, all ages Single form, all ages
Available languages English, Spanish, French, Korean English, Spanish English and Spanish English, Spanish, Vietnamese, Hmong, Somali, Chinese, Malaysian
Web Site Brookes Publishing

† Child Development Review-Parent Questionnaire is also available; 32 questions require 10-20 minutes to complete. Sensitivity is low (68%) and specificity is adequate (88%).

‡ There is no single scoring method yielding adequate sensitivity and specificity. If "no opportunity" is scored as a fail, most affected children will be referred but with substantial over-referrals. If "no opportunity" is scored as a pass, then over-referrals are minimized but many children with needs will be missed.