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Welcome to IGDI's for Infants and Toddlers

Indicators of Individual Growth and Development for Infants and Toddlers (IGDI's) are a set of measures designed and validated for use by early childhood practitioners to monitor infant and toddler growth and progress. Unlike standardized tests that are administered infrequently, IGDI's are designed to be used repeatedly by practitioners to estimate each child's "rate of growth" over time. The benefit of this approach is that the information can be used to make data-based decisions about intervention design and implementation at reasonable levels of training, time, and cost.

News & Information 

Infant and Toddler IGDIs book available now from Brookes Publishing:

• Brookes Publishing has released Using IGDIs:  Monitoring Progress and Improving Intervention for Infants andYoung Children by Judith Carta, Charles Greenwood, Dale Walker, and Jay Buzhardt
• Using IGDIs is a comprehensive guide to successful use of all five Infant and Toddler IGDI measures and their related support tools to inform and support your use of IGDI measures for progress monitoring and intervention decision making
• Order a copy from your favorite bookstore or order directly from Brookes

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See our clarification regarding use of the Early Communication Indicator for children from diverse language backgrounds

Take a look at our User Agreement
Anyone who uses the IGDI data system is required to acknowledge that they have read this agreement. Feel free to look at it and give us feedback.