The placebo effect, because one group believes they are receiving a new prescription but they are actually taking the same prescriptions they always have. This can also be called a single blind experiment because the test subjects do not know which group they are in (or that there are two groups most likely), but the psychologist(s) know who is taking which prescription/who is in which group.
There both things you use in the morning time
Marbury v madison gave the us supreme court the right of judicial review- meaning they had the power to strike down laws if determined unconstitutional. Because of this, the decision of brown v board was able to be made.
Answer:
I don't know what you are saying sorry