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Other quiz:

Psychology › View

What is the procedure where neither the subject or the experimenter knows which group is receiving which treatment?

A. double-blind procedure

B. single-blind procedure

C. random selection

D. random assignment

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Biochemistry › View

An atom of ___________ contains 15 protons, 16 neutrons, 15 electrons and therefore has a mass number is ________.

A. Phosphorus, 31

B. Sulfur, 32

C. Phosphorus, 15

D. Zinc, 65

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