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

question 41

Multiple Choice

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.

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Definitions:

Arithmetic

A branch of mathematics dealing with the properties and manipulation of numbers, including operations such as addition, subtraction, multiplication, and division.

Selective Attrition

The process where certain kinds of participants drop out of a study over time, potentially skewing the results.

Demand Characteristics

Subtle cues or signals in an experimental setup that suggest to participants what behavior is expected or desired, potentially influencing the outcomes of the study.

Replicability

The ability of a study or experiment to be repeated or reproduced to verify results and confirm reliability and validity of findings.