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?
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.
The Mediterranean diet puts a lot of focus on vegetables and fruits, but not very many types of meats. Poultry and eggs are eaten in moderation, while red meat is only eaten rarely.