Why were goods rationed in the United States during World War II? US government officials wanted to collect these goods to use for themselves.
Limits were needed on goods that were in short supply.
US companies wanted to make sure demand for goods was high.
The government needed to store these goods to protect them from enemies.
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Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?