Answer:The purpose of the Marshall Plan was to aid in the economic recovery of nations after WWII and to reduce the influence of Communist parties within them.
I believe the answer is: The control group would be cars that were washed by hand
The control group exist in order to measure the result that created by subjects that recieve specal treatment (the special treatment in this case would be the automated car wash).
In the example above, the result from automatic car wash would be controlled by comparing it to the result from handwashed cars.
<span>The Night of the Long Knives, in June 1934, saw the wiping out of the SA’s leadership and others who had angered Hitler in the recent past in Nazi Germany. After this date, the SS lead by Heinrich Himmler was to become far more powerful in Nazi Germany.</span>
<span>For all the power the Enabling Act gave Hitler, he still felt threatened by some in the Nazi Party. He was also worried that the regular army had not given an oath of allegiance. Hitler knew that the army hierarchy held him in disdain as he was ‘only ‘ a corporal in their eyes. The Night of the Long Knives not only removed the SA leaders but also got Hitler the army’s oath that he so needed</span>
Answer: negative reinforcement by escape
Explanation: Negative reinforcement occurs when a disliked or aversive stimulus is prevented or altered or stopped. The scenario above describes negative reinforcement by escape which means that an aversive, unwanted or disliked event is removed after it has occurred. Escape is a negative reinforcement and occurs when the aversive stimulus has occurred before being removed. In the context above, Tom was only able to prevent his loss after it has occurred, meaning an escape negative reinforcement.
