Unusual ESP subjects who defy chance when first tested nearly always lose the supposed "psychic powers" when retested.Parapsychologists have called this

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The decline effect refers to the phenomenon where initially high scores on an ESP test are followed by a decline in performance upon retesting, suggesting that the performance was due to chance or other external factors rather than any actual psychic ability. The other options do not accurately describe this phenomenon.

Unusual ESP Subjects Who Defy Chance When First Tested Nearly