What age range do the Bayley Scales of Infant Toddler Development evaluate?

The Bayley Scales of Infant and Toddler Development are specifically designed to assess developmental functioning in children ranging from 1 month to 42 months of age. This tool examines various domains of development, including cognitive, language, motor, social-emotional, and adaptive behavior skills, making it particularly useful for identifying developmental delays in young children. This comprehensive evaluation helps in planning appropriate interventions and support for children and their families during these crucial early years. As such, the correct age range reflects the instrument's purpose and design, ensuring that it effectively captures the developmental milestones for infants and toddlers.