According to most state licensing regulations, the minimum average required outdoor play space per child in a child care center is between square feet. a. 45 and 60 b. 25 and 45 c. 60 and 75 d. 30 and 45

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?