The results from J.B.Rhine's studies using Zener cards at Duke University in the 1930s were challenged because subjects could
A)guess the card based on the behaviour of the card reader.
B)guess the order of the cards over time.
C)see the card in a reflection off Rhine's spectacles.
D)see through the cards since they were so worn down.

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The Answer of The results from J.B.Rhine's studies using Zener cards at Duke University in the 1930s were challenged because subjects could
A)guess the card based on the behaviour of the card reader.
B)guess the order of the cards over time.
C)see the card in a reflection off Rhine's spectacles.
D)see through the cards since they were so worn down.

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