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How many stages of cognitive development did Piaget propose?

AThree stages
BFour stages
CFive stages
DSix stages
Answer & Solution
Correct answer: B. Four stages
1. Piaget described development as moving through a fixed series of stages. 2. These are the sensorimotor, preoperational, concrete operational and formal operational stages. 3. Three, five or six stages do not match his scheme. _Source: Wikipedia, Piaget's theory of cognitive development, Four stages of development_
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