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Twenty volunteers were assigned at random to one of two groups (10 people in each group). One group would take Vitamin C for two weeks, while the second group would take a placebo. At the end of the study, the proportion of colds in the two groups will be compared.
-What is the response variable in the study?
A) Getting a cold (or not)
B) Taking Vitamin C (or a Placebo)
C) Getting 8 hours of sleep a night (or not)
D) Exposure to other people with colds (or not)

Question

Quizplus · Accepted Answer

The response variable is the outcome that the researchers are measuring to see if it changes in response to the experimental conditions, which in this case is whether or not participants get a cold.

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