Which statement best describes motor development milestones such as sitting, crawling, and walking?

Which statement best describes motor development milestones such as sitting, crawling, and walking?

• A. It follows a fixed order largely determined by maturation, with little effect from experience
• B. It is entirely determined by experience
• C. It occurs randomly with no sequence
• D. It cannot be predicted

Answer: (A)

Motor development milestones like sitting, crawling, and walking usually follow a fairly consistent sequence. This progression is mainly shaped by maturation—the development of the nervous system and muscles—so the order tends to be predictable. While a supportive environment and practice can influence when a child reaches each milestone, they generally do not alter the order itself. That’s why describing the milestones as following a fixed sequence largely determined by maturation, with little effect from experience is the best fit. The idea that development is entirely experience-based, random, or unpredictable doesn’t match what’s typically observed in infancy and toddler years.

Motor development milestones like sitting, crawling, and walking usually follow a fairly consistent sequence. This progression is mainly shaped by maturation—the development of the nervous system and muscles—so the order tends to be predictable. While a supportive environment and practice can influence when a child reaches each milestone, they generally do not alter the order itself. That’s why describing the milestones as following a fixed sequence largely determined by maturation, with little effect from experience is the best fit. The idea that development is entirely experience-based, random, or unpredictable doesn’t match what’s typically observed in infancy and toddler years.