MCAT Practice · Reasoning about the Design & Execution of Research
MCAT Question: A research study investigates the relationship between caffeine consumption and…
hard
A research study investigates the relationship between caffeine consumption and sleep quality in college students. Participants are asked to record their caffeine intake and sleep patterns over a period of one month. At the end of the study, the researchers find a significant negative correlation between caffeine consumption and sleep quality, indicating that higher caffeine intake is associated with poorer sleep. Which of the following conclusions can be drawn from these findings?
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