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What does décalage suggest about Piaget's stage model?

AIt is exactly correct
BIt is a useful approximation
CIt should be abandoned
DIt applies only to adults
Answer & Solution
Correct answer: B. It is a useful approximation
1. Décalage is uneven progress in a specific domain. 2. Because development is not always smooth, the sharp stages cannot be exact. 3. So the stage model is at best a useful approximation. _Source: Wikipedia, Piaget's theory of cognitive development, Challenges to Piagetian stage theory_
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