Dr. Stephenson wants to investigate whether children who eat a lot of processed sugar find it more difficult to sit still and concentrate in school than children who don't. She randomly divides all the children in the Edward L. Thorndike Elementary School into two groups. Group one is given a breakfast of Chocolate Frosted Sugar Bombs cereal and chocolate milk, and a midday snack of Jolt Cola and Crunchy Sugar Granola Chews. Group two is given an identical breakfast and snack, but their food contains artificial sweeteners instead of processed sugar. Dr. Stephenson records the behavior of each group of children on these diets for one month and compares them statistically. In this experiment, Dr. Stephenson's experimental group is the
A) children's behavior before and after their breakfasts and snacks.
B) type of sweetener used in the children's breakfasts and snacks.
C) children in group one.
D) children in group two.
Question 2
Dr. Pena wants to investigate whether children who eat a lot of processed sugar find it more difficult to sit still and concentrate in school than children who don't. She randomly divides all the children in the Edward L. Thorndike Elementary School into two groups. Group one is given a breakfast of Chocolate Frosted Sugar Bombs cereal and chocolate milk, and a midday snack of Jolt Cola and Crunchy Sugar Granola Chews. Group two is given an identical breakfast and snack, but their food contains artificial sweeteners instead of processed sugar. Dr. Pena records the behavior of each group of children on these diets for one month and compares them statistically. In this experiment, Dr. Pena's control group variable is the
A) children's behavior before and after their breakfasts and snacks.
B) type of sweetener used in the children's breakfasts and snacks.
C) children in group one.
D) children in group two.
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