A. All subject get the experimental procedure
B. Half the subjects get the experimental procedure, half the placebo; which they receive is know only to the experimenter
C. Half the subjects get the experimental procedure, half the placebo; which they receive is not know to subjects or experimenters
D. all subjects get control
Correct Answer: Half the subjects get the experimental procedure, half the placebo; which they receive is not know to subjects or experimenters ✔
Last Updated: May 02, 2024