Your friend John tells you about a recent study in which researchers find evidence of an association between physical exercise and mental health. John doesn't remember what type of research method was used in the study, but he argues that the findings suggest that if an individual increases the amount that they exercise, their mental health should subsequently improve.
You decide to test this hypothesis. Explain how your experiment addresses the problems relating to causation and correlation regarding the above assumption of your friend.
Additional requirement
The problem belongs to Nursing and it discusses about testing the hypothesis that exercise improves mental health. The causation and correlation about the assumption of the relation between exercise and mental health has been discussed in the solution.
Word limit 120