Psychology / Unit 8 Psych 0891 short lesson, about 20 seconds
Piaget's Formal Operational Stage
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The idea
In Piaget's formal operational stage, from about age twelve, reasoning extends to abstract and hypothetical propositions.
In practice
An adolescent can argue from a premise they believe to be false and follow it to its consequences.
Where people slip
Formal operational reasoning is not reached universally, and adults use it selectively by domain.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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