Which age range corresponds to the Sensorimotor stage in Piaget's theory of cognitive development?

• A. 7-12 Years
• B. Adolescence
• C. 0-5 Years
• D. Birth Through 18-24 Months

Answer: (D)

The sensorimotor stage encompasses how infants learn by acting on and sensing their world. Thinking during this period is tied to concrete actions and direct perception, not to symbols or abstract thought. Babies move from reflexive actions to more purposeful behaviors, gradually coordinating their senses with motor skills. A key milestone is object permanence—the understanding that objects continue to exist even when out of sight. This stage runs from birth up to about two years old (often listed as birth through 18–24 months), before language and more complex thinking develop in later stages. That’s why this age range best matches the sensorimotor period.