Which age group primarily uses the Battelle Developmental Inventory?

The Battelle Developmental Inventory (BDI) is designed to assess the developmental progress of children from birth to age 8. It evaluates multiple domains of development, including physical, cognitive, language, social-emotional, and adaptive skills. This comprehensive tool is especially useful in early childhood settings, where understanding a child's developmental milestones is crucial for providing appropriate support and intervention.

Using the BDI within this specific age range allows educators and specialists to monitor advancements in development, identify delays, and implement strategies tailored to promote growth. Since the instrument is intended to evaluate the youngest children, its applicability decreases significantly for older age groups such as those in the 6 to 12 years or 12 to 18 years categories. Therefore, option B is the correct choice, as it encompasses the complete intended age range for the Battelle Developmental Inventory.