BattelleĀ® Developmental Inventory, Second Edition Normative Update (BDI-2 NU)


Battelle® Developmental Inventory, Second Edition (BDI-2™) Normative Update

An Early Childhood Favorite


As children develop, they typically attain critical skills and behaviors sequentially from simple to complex. The Battelle Developmental Inventory, 2nd Edition Normative Update (BDI-2™ NU) is an early childhood instrument based on the concept of measuring these developmental milestones.

Did you know the BDI-3™ now available? Click here to learn more!

COVID-19 Readiness: BDI-2 NU Remote Administration Guidance Available Here


Description & Features

Appropriate for all children from birth through age 7 years, 11 months, BDI-2 NU meets all five developmental areas covered by the Individuals with Disabilities Education Act (IDEA)—Motor, Adaptive, Cognitive, Personal-Social, and Communication—and is ideal for several uses:

  • Screening of key developmental milestones for school readiness
  • Assessing current developmental strengths and needs
  • Measuring longitudinal growth of development
  • Determining eligibility for special education services
  • Evaluating children across various programs, including preschool, daycare, early intervention, kindergarten, and Head Start®
  • Evaluating early childhood programs for accountability
  • Assisting in development of Individualized Family Service Plans (IFSPs) and Individualized Education Programs (IEPs)

BDI-2 NU may be used by a team of professionals or by an individual service provider. Accommodations and modifications are available for professionals when assessing infants and children with special needs or disabilities.

Restriction Level
Testing Ages
  • BDI-2 NU may be used with examinees aged birth through 7 years, 11 months.
Testing Ages
  • A typical administration requires 5–10 minutes per subtest.


Jean Newborg


Battelle Developmental Inventory, 2nd Edition Normative Update (BDI-2™ NU) administration is flexible and may begin in any of the five domains. The start point for each subdomain is clearly identified and is determined by the age or the estimated ability level of the child. Examiners then proceed through each of the subdomains to determine the child’s level of development.

BDI-2 NU items are child friendly and easy to administer, with clear and efficient item-scoring criteria. Based on the multifaceted information from Structured, Observational, and Interview items, BDI-2 NU can be used by an individual or team of professionals to create a comprehensive picture of a child’s skills. “Scripting” helps ensure administration consistency but also allows the examiner flexibility to query where necessary to ensure sufficient information is gathered.

Scoring & Reporting

Scoring may be done by hand or using BDI-2 NU Data Manager. This application allows users to quickly enter a child’s demographic and assessment data. Individuals can enter raw scores or item detail information and then generate useful individual and group reports.

BDI-2 NU Data Manager allows for scoring based on both the BDI-2 and the BDI-2 NU, as both norm groups are available. If you still use the BDI-2 and have not yet converted to the BDI-2 NU, you can still score using Data Manager.