In a recent study for The Archives of Internal Medicine, scientists followed 153 men and women for two weeks, keeping track of their quality and duration of sleep. Then, during a five-day period, they quarantined the subjects and exposed them to cold viruses. Those who slept an average of fewer than seven hours a night, it turned out, were three times as likely to get sick as those who averaged at least eight hours.
I'm kinda lost at what independent variable and dependent variable means?What is the Independent and Dependent Variable in this Study? Please Help.?
independent variable = it is what the researchers manipulate.
dependent variable = results that occurred.
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