Battelle Developmental Inventory, Third Edition (BDI-3)

Identification of early
learners has lifelong impact

Through structured items, interviews, and observation, the BDI-3® offers the most robust data collection method for valid results and more accurate conclusions to support early childhood identification.

Identification of early
learners has lifelong impact

Through structured items, interviews, and observation, the BDI-3® offers the most robust data collection method for valid results and more accurate conclusions to support early childhood identification.

Explore Recommended Assessments

The only early childhood assessment that measures the five developmental domains from birth to 7 years, 11 months

The only early childhood assessment that measures
the five developmental domains from birth to 7 years, 11 months

The only early childhood assessment that measures
the five developmental domains from birth to 7 years, 11 months

Birth - 7 years,
11 months

60 - 90
Minutes

Ideal for:

  • Assessing developmental milestones for school readiness
  • Determining eligibility for special education services
  • Using data to inform the development of IFSPs and IEP

Benefits:

  • Provides unique measures of developmental progress, including the Relative Developmental Index (RDI) and Change Sensitive Scores
  • Offers an in-depth analysis of a child's age-specific social and emotional competencies
  • Ensures a complete, reliable, and defensible set of measures to inform special education identification decisions
  • Offline digital administration, with automatic sync to online scoring and reporting
  • Support developmental skill aqcuisition with tailored Lesson Plans for each domain

Use the BDI-3 to help assess:

Birth - 7 years,
11 months

10-20 Mins
Per Domain

Ideal for:

  • Quickly measuring developmental progress across the 5 domains
  • Universal screening for signs of developmental delays

Benefits:

  • Efficient and comprehensive tool to support reliable identification practices
  • Quickly determine which learners need further evaluation
  • Identify specific domains to target in a comprehensive evaluation
  • Offline digital administration, with automatic sync to online scoring and reporting

Use the BDI-3 to help assess:

3 years, 6 mos.
to 7 years

Up to
40 Minutes

Ideal for:

  • Measuring foundational academic skill proficiency
  • Quick assessment of a young child's risk of academic delays in literacy and math
  • Early childhood progress monitoring

Benefits:

  • Use as a standalone academic measure or in combination with BDI products
  • Aligned with common core standards to inform early childhood instruction
  • Offline digital administration, with automatic sync to online scoring and reporting
  • Support foundational academic skill aqcuisition with tailored Lesson Plans for each literacy and numeracy
  • 10-minute administration time for numeracy;
    30-minute administration time for literacy

Use the BDI-3 to help assess:

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