[Solved] Do people who excessively exposed to computer screens and iPhones suffer from insomnia and depression?

Do people who excessively exposed to computer screens and iPhones suffer from insomnia and depression?

a. Propose the experiment to answer this question

b. What would be a control treatment in your experiment?

c. What are the other variables that are important to control in your experiment?

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Answer to Do people who excessively exposed to computer screens and iPhones suffer from insomnia and depression?….