A nutrition researcher believes that the amount of fat in a mother\'s diet will

Question

A nutrition researcher believes that the amount of fat in a mother's diet will affect the weight of her newborn children. To test this theory, the researcher obtained 15 identical female mice and randomly assigned five mice to each of three diets: low fat (10 percentage fat), high fat (40 percentage fat), and control (25 percentage fat). Each mouse was then impregnated and subsequently gave birth to 4 pups. At 3 weeks of age (after weaning), each pup was weighed. Answer the following questions about this experiment. What is the experimental design? What are the treatments? What is the experimental unit? What is the measurement unit? How many measurements were taken?

Explanation / Answer

Answer to the question:

a. 1. Independent measures / between groups: Different participants are used in each condition of the independent variable.

b. Low fat, high fat, and control

c. Amount of fat as part of diet
d. Weight of pup
e. Measurements = 5 mice with 4pups in 3 groups, so 60 measurements are taken

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