The Battelle® Developmental Inventory, Third Edition (BDI-3®) is a research-backed, IDEA-aligned tool for assessing children from birth through age 7 years, 11 months. Trusted by schools, agencies, and early intervention teams nationwide, BDI-3 delivers reliable insight into developmental needs across key domains—supporting early identification and informed decision-making.
Our assessment portfolio provides educators with invaluable insights to inform personalized instruction, equitably place students and identify gaps in student potential and performance.
Comprehensive, Integrated Insights Across Five Domains
Identify early signs of developmental delays before children enter school using one trusted tool.
Assess Adaptive, Cognitive, Communication, Motor, and Social-Emotional domains in a single administration.
Evaluate children through structured tasks, observations, and parent/teacher interviews.
BDI-3 offers flexible administration options to fit a variety of real-world testing settings. Examiners can choose paper kits or a digital platform, with built-in customization and automated scoring that reduce effort, increase efficiency, and ensure reliable results.
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