Battelle Developmental Inventory, 2nd Edition Normative Update (BDI-2 NU)

General Information on the Measure
Purpose of the measure

Battelle Developmental Inventory, Second Edition Normative Update (BDI-2 NU) is an early childhood instrument based on the concepts of developmental milestones. As a child develops, he or she typically attains critical skills and behaviors sequentially from simple to complex. BDI-2 NU helps measure a child's progress along this developmental continuum by both global domains and discrete skill sets. BDI-2 NU is aligned to the three OSEP Early Childhood Outcomes, as well as the Head Start Child Outcomes. It can be used to meet the federal reporting requirements across Part C, Part B/619, and Head Start programs. The BDI-2 NU includes re-weighted normative data based on 2015 U.S. Census data projections to meet federal requirements for eligibility.

Main constructs measured

Cognitive competencies; Intrapersonal competencies; Interpersonal competencies

Applicable grade levels

0-7 years, 11 months

Publication year for the most recent version


Year originally developed


Related measures
Measure Administration


Method of administration

Paper/Pencil, Digital

Number of items

(60 in the adaptive domain, 100 in the personal-social domain, 85 in the communication domain, 100 in the motor domain, 105 in the cognitive domain)

Item format

Selected response

Administration time

60-90 minutes

Available languages

English, Spanish

Fee for use Fee charged by developer
Credentials required for administration


Overall score reporting

The overall composite score is reported.

Subscore reporting

There are five domain scores and 13 subdomain scores:

  • Adaptive domain
    • Self-care
    • Personal responsibility
  • Personal-social domain
    • Adult interaction
    • Peer interaction
    • Self-concept and social role
  • Communication domain
    • Receptive communication
    • Expressive communication
  • Motor domain
    • Gross motor
    • Fine motor
    • Perceptual motor
  • Cognitive domain
    • Attention and memory
    • Reasoning and academic skills
    • Perception and concepts
Scoring procedures

A scoring manual and software are provided by the assessment developers.

Interpretive information

Percentile ranks and confidence intervals are provided for the subdomain scores and developmental quotients. Age-equivalent tables are also available. Reporting is also available through the BDI-2 Data Manager.

Evidence of Technical Quality
Populations for which technical quality evidence has been collected

Data was collected from 2,500 children ages birth to 7 years, 11 months from four U.S. census regions: Northeast, Midwest, South, and West.

Reliability evidence

Internal consistency reliability estimates (coefficient alpha) for subdomains ranged from 0.85 to 0.95. Total score reliability (coefficient alpha) was 0.99.

Validity evidence
Evidence based on content
No information available in the references.
Evidence based on response processes
New items were piloted in a separate study, and items were revised deleted or replaced based on this pilot. Ease of administration and child responsiveness were examined, and these factors were used to select items for the final version.
Evidence based on internal structure
No information available in the references reviewed.
Evidence based on relations with other variables
BDI-2 subdomain scores correlated positively with scores on the Bayley Scales of Infant Development, Second Edition on similar constructs (between 0.48 and 0.75). Studies suggest that BDI-2 scores can accurately identify students from special populations (autism, cognitive delays, prematurity, and speech/language delays). Accuracy rates ranged from 0.75 to 0.91.
Locating the Measure
Obtaining a copy of the measure

Newborg, J. , "Battelle developmental inventory (2nd ed.)," Riverside Publishing, 2005.

Hilton-Mounger, A. , "Battelle Developmental Inventory," In Encyclopedia of Child Behavior and Development, Springer US, 2011, pp. 210–212.

Bayley, N. "Bayley scales of infant development: Manual," Psychological Corporation, 1993.


Measure summary updated October 3, 2018.