You've recently purchased some special desks that your employees can use to alternate their work position between standing and sitting. You want to know how this affects a variety of health scores including mood states, and self-reported upper and lower back pain. You track sitting time before and after the desks were installed, and correlate this with changes in the mood states and self-reported pain. Which is the correct statement regarding this study?
A. Mood states and self-reported pain are the dependent variables.
B. Mood states and self-reported pain are the independent variables.
C. Use of the standing desk is the dependent variable.
D. Correlation of this data is not dependent on these variables.
Answer: A
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