Image: Original "Puzzle Box" Apparatus Design
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Description: An image of E.J. Thorndike's original apparatus used in his puzzle-box experiments as seen in Animal Intelligence (1898)
Title: Original "Puzzle Box" Apparatus Design
Credit: https://psycnet.apa.org/fulltext/2011-13303-001.pdf?auth_token=21ba29c53d5cce35cb6a269c4b641e9ddae3da91
Author: E.J. Thorndike
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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