What concept have social psychologists used to explain the negative relationship between time spent on Facebook and happiness?

Question

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Social psychologists have used the concept of reference group to explain the negative relationship between time spent on Facebook and happiness. Reference group is a group with which individuals compare themselves and with whom they identify. On Facebook, people often compare themselves with others who appear to have more success or happiness, leading to feelings of inadequacy and low self-esteem.

What Concept Have Social Psychologists Used to Explain the Negative