June is interested in looking at whether social media use predicts feelings of loneliness and found there was a positive relationship between the two variables. However, she finds that after controlling for the amount of time a person spends with friends per week, social media use was no longer associated with feelings of loneliness. Which of the following is the correct interpretation of this finding?

A. The amount of time spent with friends is not associated with social media use.
B. The beta for amount of time spent with friends is significant.
C. The amount of time spent with friends is a third-variable problem.
D. The amount of time spent with friends predicts social media use.

The amount of time spent with friends is a third-variable problem.

Explanation:

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the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.

the anti federalists was a movement that was opposed to the creation of a us federal government. although they were not as organized as the federalists, they also had a large group of leaders, especially in state politics.

the statement "now, in a large extended country, it is impossible to have a representation, possessing the sentiments, and of integrity, to declare the minds of the people” represents the concerns of the anti federalists.

they strongly believed that the federalists were representing the interests of aristocratic elements of society at the expense of the majority of ordinary people, who lived in a rural society.

their fear for the creation of a strong federal government and the president’s power of veto in their opinion would create a tyrannical rule that would dominate the people. they defended the importance of restraining the government’s power towards people at any cost.