University of Rio GrandeHLTH 3372

1)Phil is a participant in a study designed to examine the effects of taking a dietary supplement on muscle tissue development. Phil suspects he is in the experimental group, because he is certain his muscles are bigger and stronger as a result of taking the product supplied by the researchers. When the study is completed, Phil learns that he did not receive the dietary supplement. Phil thinks the researchers made a mistake—he is certain his muscle mass increased while he took the supplement. According to this information, Phil's belief that his physical condition improved while he participated in the study is an example of

2. The government agency that enforces consumer protection laws by investigating false or misleading health-related claims is the
3. Derek takes protein supplements before and after his workouts. He told his workout partner that he became 200% stronger within a couple of months after he added the supplements to his diet. His report about the effects of the supplements is an example of a(an)
4. Zack takes 500 mg of vitamin C daily. He advises his friends to take vitamin C supplements because, he claims, the vitamin protects him from cold viruses. His claim about the usefulness of the vitamin is an
5. A nutrition researcher adds 30 mg of the mineral iron to the daily diet of 50 4-week-old laboratory mice. After ten weeks, the scientist takes blood samples from each mouse. According to his findings, the mice developed abnormal levels of certain enzymes in their red blood cells. Based on this information and your knowledge of scientific research, what would you tell him?
6. Which of the following statements is true?
7. EC- Which of the following observations is an example of a negative (an inverse) correlation?
8. Dylan takes garlic pills to lower his blood cholesterol level, and he recommends the pills to his

friends, because he thinks the supplement is helpful. Dylan's nutrition-related advice to his friends is an example of a(an)

9. Which of the following practices is an example of complementary and alternative medicine (CAM)?
10. Which of the following statements is true?
11. EC- Which of the following periodicals features peer-reviewed articles?
12. Generally, epidemiological studies
13. After examining a patient and reviewing the results of his blood tests, a physician tells the patient that his mild depressive symptoms are not the result of a serious health problem. The

physician suggests that the patient should try regular exercise and take the dietary supplement St. John's wort for three months. After this period, the physician will prescribe antidepressant medication, if the patient does not feel emotionally better. This advice is

14. A medical researcher reads an article in "Today's Health-Conscious Woman" magazine about the benefits of using the phytochemical capsaicin to treat knee pain. She asks 10 people with arthritic knees to rub a cream that contains the phytochemical on their knee joints for two weeks. At the end of the two weeks, the researcher asks the subjects whether their knee pain improved, stayed about the same, or worsened during the treatment period. After collecting responses from the people, the researcher reports the results of her study during a popular TV show that is hosted by a doctor. Based on this information, which of the following statements is true?
15. A group of scientists suspects that certain dietary practices are partially responsible for different rates of hypertension among adults of different ethnic/racial groups. To test their hypothesis, the researchers examine data concerning the different population groups' hypertension rates and their past dietary practices. This research is a(n)                                                                study.
16. Which of the following observations is an example of an inverse correlation?
17. Emily has brittle fingernails that crack and split easily. Emily's mother advises her daughter to

take gelatin pills 3 times/day, because she has heard the practice strengthens fingernails. The mother's nutrition-related advice about the benefit of taking gelatin pills is an example of a(n)

18. Which of the following statements is true?
19. EC- Researchers are conducting a study to determine the effects of vitamin C on the human immune system. The study involves providing pills that contain vitamin C to one group of human subjects and pills that do not contain vitamin C or other active ingredients to another group of people. The pills that do not contain the vitamin are
20. Which of the following statements is false?
21. A group of registered dietitians is planning to conduct a scientific study to investigate the effects

of eating honey on school-age children's behavior. At first, the researchers will

22. Scientists enroll 500 healthy adults in a study and collect dietary and other lifestyle information about the group. After 6 years, the scientists determine that study participants who ate at least 5 servings of fruits and vegetables daily were less likely to develop high blood pressure than participants who ate fewer than 5 servings of these foods daily. This study is an example of a(n)

               study