According to the observations of a nutrition scientist,laboratory mice are healthier when their diet contains physiological levels of vitamin D than when their diet lacks the micronutrient.The scientist hypothesizes that mice will be less likely to develop cancer when they consume a diet that supplies megadoses of vitamin D.Based on this information,the scientist is ready to
A)plan a retrospective study involving at least 5,000 laboratory mice to test the vitamin D and cancer hypothesis in mice.
B)design a double-blind study to test the vitamin D and cancer hypothesis in mice.
C)conduct a controlled laboratory experiment to test the vitamin D and cancer hypothesis in mice.
D)set up an experimental epidemiological study to test the vitamin D and cancer hypothesis in mice.

Question

According to the observations of a nutrition scientist,laboratory mice are healthier when their diet contains physiological levels of vitamin D than when their diet lacks the micronutrient.The scientist hypothesizes that mice will be less likely to develop cancer when they consume a diet that supplies megadoses of vitamin D.Based on this information,the scientist is ready to
A)plan a retrospective study involving at least 5,000 laboratory mice to test the vitamin D and cancer hypothesis in mice.
B)design a double-blind study to test the vitamin D and cancer hypothesis in mice.
C)conduct a controlled laboratory experiment to test the vitamin D and cancer hypothesis in mice.
D)set up an experimental epidemiological study to test the vitamin D and cancer hypothesis in mice.

Quizplus · Accepted Answer

The best choice would be to conduct a controlled laboratory experiment to test the vitamin D and cancer hypothesis in mice since it provides a controlled environment to test the hypothesis and allows for the manipulation of variables. A retrospective study (A) would not be ideal since the scientist already has a hypothesis and would need to test it in a controlled manner. A double-blind study (B) would require a large number of mice and also would not be ideal for testing the hypothesis. An experimental epidemiological study (D) would be better for testing the hypothesis in humans rather than mice.

According to the Observations of a Nutrition Scientist,laboratory Mice Are Healthier When