In a study conducted by Zajonc and his colleagues (1969), they examined the question of whether organisms perform better in the presence of others or alone, using __________ as participants.

Question

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The study conducted by Zajonc and his colleagues (1969) examined the question of whether organisms perform better in the presence of others or alone, using cockroaches as participants.

In a Study Conducted by Zajonc and His Colleagues (1969)