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nadezda [96]
3 years ago
15

Maria believes that high doses of caffeine speed up a person's reaction time. In order to test her hunch, she has five friends e

ach drink three 8-ounce cups of coffee and then measures how quickly they are able to push a button when a tone is sounded. What is wrong with Maria's research strategy?
Health
1 answer:
irina1246 [14]3 years ago
5 0

Answer:

Maria is missing a control group.

Explanation:

For Maria's experiment to be accurate, she needs to have a group of people that have not drank coffee. She will then be able to compare the experimental group to the control group for more accurate results.

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