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E.L. Thorndike

Written by the Fiveable Content Team โ€ข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโ€ขWritten by the Fiveable Content Team โ€ข Last updated September 2025

Definition

Edward Lee Thorndike was an American psychologist who developed the law of effect, which states that behaviors followed by pleasant outcomes are likely to be repeated, while those followed by unpleasant outcomes are not.

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