Chapters 5 - 7 Examples

Chapters 5 - 7 Examples - Chapters 5 7 Notes Examples...

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Chapters 5 – 7 Notes Examples Page 1 of 3 Example Does taking large amounts of vitamins protect against cancer? To study this question, researchers enrolled 29,000 Finnish men, all smokers over the age of 50. The men were separated into two groups randomly. Half of the men took vitamin supplements, and others took a dummy pill that has no active ingredient. The researchers followed all the men for eight years. At the end of the study, men in the vitamin group were no less likely to have cancer than men in the other group. This study cast doubt on the popular idea that taking lots of vitamins can reduce the risk of cancer. Identify the Explanatory Variable. A. Type of Pill (Vitamin or Dummy) B. Development of Cancer C. Finnish Men Identify the Response Variable. A. Type of Pill (Vitamin or Dummy) B. Development of Cancer C. Finnish Men Draw a well-labeled diagram of the study design. In order to avoid unconscious bias, neither the subjects nor the doctors who examined them knew whether a particular subject was taking vitamins or dummy pills. What is the name of this
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Chapters 5 - 7 Examples - Chapters 5 7 Notes Examples...

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