Imagine that you have just received a research grant to identify effective treatments for minimizing jet lag. You have examined the existing research and have noted three suggestive treatments for alleviating the condition:
1) doses of Vitamin B complex;
2) 10 minutes of meditation; and
3) 15 minutes of aerobic exercise.
Each suggestive treatment is complete with a reasonable physiological rationale. How might you discern which, if any, of those treatments would reduce or prevent jet lag? What would be the independent and dependent variables for the experiment?