Who grows taller, people who drink milk or soda? A group of 7th graders were give three cups of milk daily for two months. They were also given FF & candy for three meals a day. The second group was given three cups of soda daily for two months. They also ate healthy meals daily. At the end of two months, the groups were measured for growth.
What is wrong with this experiment?
I. The teacher was not specific with the type of soda
II. Both groups should have eaten the same type of food
III. Too many independent variables
IV. Nothing is wrong