During which stage of cognitive development do children acquire object permanence?

Question

Quizplus · Accepted Answer

Object permanence is the understanding that objects continue to exist even when they are not directly observed. This understanding is typically acquired during the sensorimotor stage of cognitive development, which occurs from birth to about two years of age. This is when children begin to recognize that objects have a separate existence from themselves and can be located even when out of sight.

During Which Stage of Cognitive Development Do Children Acquire Object