Potential answers for "Subject of a psych. experiment"

⭐⭐⭐⭐ ESP
⭐⭐⭐ GUINEAPIG
⭐⭐⭐ RAT
⭐⭐⭐ GUINEA
⭐⭐⭐ PHOBIA
⭐⭐⭐ EGO
⭐⭐⭐ TESTEE

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