Overview
Battelle Developmental Inventory, Second Edition (BDI-2) 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 helps measure a child's progress along this developmental continuum by both global domains and discrete skill sets. BDI-2 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.
Standardization
Normative data for BDI-2 were gathered from over 2500 children between the ages of birth through 7 years, 11 months. The normative sample closely matches the 2000 U.S. Census (education level based on 2001 data). Bias reviews were conducted on all items for gender and ethnicity concerns. Item desirability information from examiners was also considered in the selection of the final items.