Which assessment battery is specifically designed for evaluating infant and toddler development?

• A. Denver Developmental Screening Test II
• B. Bayley Scales of Infant and Toddler Development
• C. Wechsler Preschool and Primary Scale of Intelligence
• D. Ages and Stages Questionnaire

Answer: (B)

The main idea is identifying a tool that provides a comprehensive, standardized assessment of development specifically for very young children. The Bayley Scales of Infant and Toddler Development are designed to evaluate infants and toddlers across multiple domains—cognitive, language (receptive and expressive), motor (fine and gross), social-emotional, and adaptive behavior—and to help identify developmental delays, diagnose issues, and monitor progress. It is appropriate for young children up to about 3½ years old, making it the best choice among the options for evaluating infant and toddler development. The other tools serve different purposes: the Denver Developmental Screening Test II is a broad screening instrument, not a full battery; the Wechsler Preschool and Primary Scale of Intelligence targets older preschoolers and focuses more on cognitive skills; and the Ages and Stages Questionnaire is a parent-completed screening measure rather than a direct, standardized assessment of the child.