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Topic starter
28/10/2022 10:14 am
The results of carefully controlled observations of Clever Hans and his ability to solve math problems showed
- he could do math.
- he could add, but he could not subtract.
- he was cued by the owner looking up or down.
- none of these could be determined by observation.
Spoiler
Answer
3. he was cued by the owner looking up or down.
