<span>-pair subjects who are identical on relevant variables and assign one to the control group and one to the experimental group
-create groups that are equivalent in terms of their averages on some relevant variables
-randomly assign subjects to the experimental and control groups
-match subjects on relevant variables
-(all of these choices)</span>
Answer:
n 1946, Winston Churchill gave a speech in which he declared that Russia had built an "Iron Curtain" separating eastern Europe from western Europe. ... Churchill's term became the standard for describing Soviet-controlled Eastern Bloc nations during the Cold War.
Answer:
constitutional rights can be limited during times of war.
Explanation:
The Constitution is the supreme law of the country, and the rights that are outlined in it apply to all of us, equally. However, there are specific and limited circumstances in which such rights can be limited. Most often, this case is war. During a state of war, leaders often have to place some limits on our constitutional rights in order to support the war effort. Both Lincoln's and FDR's actions are examples of this emergency practice.