Advertisements for a new energy drink claim that it helps people concentrate, an

Question

Advertisements for a new energy drink claim that it helps people concentrate, and you are designing an experiment to test the hypothesis that the energy drink improves concentration. A large group of study participants are going to come to your lab and take a concentration test. Now you must choose independent and dependent variables for your experiment. Q3.8. What would be an appropriate independent (treatment) variable for your experiment? OHow much caffeine (from all sources) participants have consumed the day of the test How much of the energy drink participants report drinking in the last montlh How well the participants can concentrate during the test How much of the energy drink participants are instructed to drink right before the test Submit Q3.9. Of the following possible dependent (response) variables, which is the most appropriate for your experiment? O Participants' self-reported ability to concentrate on the concentration test O Participants' score on the concentration test Participants' heart rate during the concentration test Participants' ability to stay awake during the concentration test Submit

Explanation / Answer

3.8) how much drink participants reported drinking last month.

3.9)participants score on the concentration test.

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