Hello pls help me pls​
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Social Studies, 22.06.2019 15:30, PENTALIZARD8179
Which of the following statements about new spain is true
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Social Studies, 22.06.2019 22:20, Jxsolvez
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?
Answers: 3
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