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 want to test this hypothesis in a research. Provide two critiques of your research design
Additional requirement
The question comes to Nursing and it discusses about testing the hypothesis that exercise improves mental health. The critiques for this research has been discussed in the solution.
Word limit 200