Two researchers are investigating whether sleep is related to quality of life. D

Question

Two researchers are investigating whether sleep is related to quality of life. Dr. Andover is collecting data from surveys of 1000 people to explore the association between sleep and quality of life. Meanwhile, Dr. Brown is conducting a study by randomly assigning 150 people to groups that will be asked to sleep for either 4 hours, 8 hours or 12 hours a day for one week. Both researchers use a survey to measure how participants rate their quality of life. In Dr. Brown's study, the participants complete the survey twice, once at the start and once at the end of the study Which researcher(s) is using experimental research methods to investigate their question? Which researcher(s) is using only descriptive research methods to investigate their question? According to scientists, which researcher(s) can use the data from their study as evidence that sleep causes a change to quality of life? When determining whether the number of hours slept affects one's quality of life, what would be the independent and dependent variables? . * . “ © @ :x:1 1 L] HTncss Mashups Words:0 Path: p

Explanation / Answer

Dr. Brown is using experimental research and Dr. Andover is using descriptive research method.
According to scientists, Dr. Brown's experimental research with three time periods for one week will provide more authentic results than the survey method because, we may not know whether the answers in the survey are true or not.
The Independent variable is the number of hours of sleep and the dependent variable is the quality of life.

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