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.

it should be c, women were allowed to vote in all states because federal law supersedes state law.

"states can make their own laws, as long as they don't contradict what the federal law states. the states do not have the authority to pass a law that negates a federal law." -google

giant impact theory - the moon was formed from the collision between earth and another mars-sized body.

colliding planetesimals hypothesis - the moon was formed from the same cloud of material as earth.

capture hypothesis - the moon was locked into orbit by earths gravity as it was passing by it.

accretion hypothesis - the moon was formed from collisions and combining of planetesimals.

i think this is right, if not and you know better let me know.