A researcher was interested in the impact of exercise on mental health. He recruited two groups of participants: 30 who engaged in an hour or more of aerobic exercise daily and 30 who did not engage in any aerobic exercise. He administered a valid mental health inventory to all and found lower scores (i.E., lower mental health) in the sedentary group. He concluded that exercise had a positive effect on mental health. How does this design either support or fail to support this conclusion? Be specific.

The way this design supports the conclusion is that there is a correlation between the exercise and the results of the test.

Explanation:

To understand this answer we need to analyze the research method. First of all, he had a research question similar to: does aerobic exercise helps people have healthier mental health? then he reunited one control group and one experimental group. The variables were the results of the instrument and the aerobic exercise. Obtaining that the group that didn't perform exercise had lower mental health than the group who did exercise.

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