I believe the answer is: double blind procedures
double blind procedures refers to a form of study in which both participants and the researchers do not know which subjects are receiving the treatment. The purpose of double blind procedures is to prevent the bias held by the experimenters along with placebo effects.
The ability to punish a subordinate is associated with POSITION power.
Answer:
it would be relief
Explanation:
because Contour lines are an effective device for representing relief on topographic maps.
well that what i think