Which of the following best describes a double-bind experimental procedure?
AHalf the subjects get the experimental procedure, half the placebo; which they receive is not know to subjects or experimenters
BHalf the subjects get the experimental procedure, half the placebo; which they receive is know only to the experimenter
CAll subject get the experimental procedure
Dall subjects get control
Correct answer
A. Half the subjects get the experimental procedure, half the placebo; which they receive is not know to subjects or experimenters
Explanation
The correct answer is Half the subjects get the experimental procedure, half the placebo; which they receive is not know to subjects or experimenters.