Multiple Choice
A psychologist is doing research for a pharmaceutical company.The drugs that are being tested are numbered so that the psychologist does not know what they are,nor does the psychologist know which participants are receiving which drugs.Participants are also unaware of differences in treatments.Which phenomenon is being described?
A) within-subjects design.
B) correlational method.
C) double-blind control.
D) random assignment.
Correct Answer:
Verified
Correct Answer:
Verified
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