Battelle Developmental Inventory, Third Edition (BDI-3)

BDI-3 Logo

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.

BDI-3 Logo

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

BDI-3 Logo

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:

Image of children playing in a school
Image of two students reading
Image of student and teacher

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:

Image of children playing in a school
Image of two students reading
Image of student and teacher

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:

Image of children playing in a school
Image of two students reading
Image of student and teacher
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