A researcher wants to test the effects of daily meditation on stress levels of individuals. She divides the participants randomly into a treatment group and into a control group and conducts an experiment.
She pays for meditation classes for one-half of the subjects, and the other half does not join the class. Which of the following statements is true of the two groups in this experiment? A) The participants in the treatment group are assigned by chance, whereas the ones in the control group are assigned by choice.
B) The participants in the control group are assigned by chance, whereas the participants in the treatment group are assigned by choice.
C) The treatment group is the group of subjects that receives finance from the researcher for meditation classes; the control group is the group that does not.
D) The control group is the group of subjects that receives finance from the researcher to join the meditation class; the treatment group is the group that does not.
Question 2
In case of a decrease in product prices:
A) the quantity effect always dominates the price effect.
B) the price effect always dominates the quantity effect.
C) when the price effect dominates the quantity effect, total revenue increases.
D) when the quantity effect dominates the price effect, total revenue increases.
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