Scenario A: A professor is interested in studying whether consuming caffeine at different times of day influences sleep quality. She instructs her participants to take a caffeine pill at noon on Monday, 5pm on Wednesday, and at 9pm (right before bed) on Saturday and then measures their sleep quality using an device that calculates how long it takes them to fall asleep each night. What is the independent variable for this study? The caffeine pill The people in the study The Time of day caffeine is consumed Sleep quality
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Monday, September 9, 2019
[ Other - Education ] Open Question : What is the independent variable for this study?
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Hello, my name is Kamal Deka. I'm a 40 year old self-employed from India.
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