Author Question: Dr. Kieu wants to investigate whether children who eat a lot of processed sugar find it more ... (Read 80 times)

jho37

  • Hero Member
  • *****
  • Posts: 531
Dr. Kieu 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. Kieu records the behavior of each group of children on these diets for one month and compares them statistically. In this experiment, Dr. Kieu's independent 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.

Question 2

The major advantage of the experimental method is that it
 
  A) is a fast, inexpensive way to gather a lot of data.
  B) quickly detects relationships between variables.
  C) helps researchers determine cause-and-effect relationships.
  D) gives researchers great latitude for improvisation if conditions change.



nekcihc358

  • Sr. Member
  • ****
  • Posts: 327
Answer to Question 1

B

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

For a complete list of videos, visit our video library