alleryA child cannot imagine pouring water back into its first glass to undo a change. This is:
AEgocentrism
BArtificialism
CClass inclusion
DIrreversibility
Answer & Solution
Correct answer: D. Irreversibility
1. In the beaker task, water is poured from a short glass into a tall thin one.
2. A preoperational child does not mentally run the action backwards.
3. Being unable to mentally reverse a sequence of events is **irreversibility**.
4. Concrete operational children overcome it with reversibility, which lets them conserve.
**Why not the others:** Class inclusion is about parts and wholes of a group, not undoing an action; egocentrism is about viewpoints.
_Source: Wikipedia, "Piaget's theory of cognitive development", section "Intuitive thought substage" (revision 1379038101)_
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