Which tool is used to screen development from birth to age 5 years?

• A. Denver Developmental Screening Test
• B. Bayley Scales of Infant Development
• C. Ages and Stages Questionnaires
• D. Vineland Adaptive Behavior Scales

Answer: (C)

Screening development from birth to age 5 is about quickly flagging children who may need further evaluation so they can get timely support. Ages and Stages Questionnaires fits this purpose best because it is designed specifically as a parent-completed screening tool for the full birth-to-5 years, with forms tailored to each age window.

In practice, a parent fills out brief questions about everyday skills in five domains: communication, gross motor, fine motor, problem-solving, and personal-social. Each domain has age-appropriate items, and scoring compares the child’s responses to established cutoffs to indicate if a domain is “on track” or if there might be a delay requiring more assessment. Because it spans birth through preschool years and is quick to administer in a busy clinic or at home, it’s particularly useful for routine development screening during well-child visits.

Other tools have their places, but they don’t align as neatly with the needs of screening across the entire birth-to-5 window in a practical, population-wide way. The Denver Developmental Screening Test is another general screening option for young children, but it’s less commonly used today in many settings. The Bayley Scales provide a detailed, in-depth developmental assessment rather than a quick screen. The Vineland Adaptive Behavior Scales focus on adaptive functioning and are typically used in different contexts, such as evaluating children with known developmental issues or planning supports, rather than routine screening.