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Psychology  /  Psych 0949  ·  Atom · ~20 seconds

When Two Piagetian Tasks Disagree

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When two tasks place the same child at different stages, the disagreement is reported rather than resolved by choosing the higher result.

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A child conserves number and fails conservation of volume in the same session.

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Conservation arrives at different ages for number, mass, and volume. A single stage label hides that.