Practice Quiz

Clinical Nutritionist CCN Exam Prep - Question List

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16. Which of the following is NOT true of a randomized, double-blind clinical research trial?
  1. Participants in the treatment group are carefully matched to control subjects.
  2. Both the study investigators and participants are unaware of which subjects are receiving treatment or intervention.
  3. Placebo treatments are never used.
  4. Participants are divided into treatment/control groups without bias.
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17. In behavior modification, the term extinction is defined as:
  1. Punishing undesirable behaviors with negative feedback
  2. Encouraging repetition of desirable behaviors
  3. Reducing undesirable behaviors by withholding positive reinforcement
  4. Identifying behaviors that were common in childhood
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18. Which of the following statements demonstrates the correct wording for a null hypothesis?
  1. Women who consume large amounts of dietary fiber have the same rates of cardiovascular disease as women who consume lesser amounts of dietary fiber.
  2. Women who consume large amounts of dietary fiber have lower rates of cardiovascular disease than women who consume lesser amounts of dietary fiber.
  3. Dietary fiber intake does not affect rates of cardiovascular disease in women.
  4. Women should eat more dietary fiber to lower their risk of cardiovascular disease.
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19. The process in which the liver produces glucose from glycerol or amino acids is known as:
  1. Krebs cycle
  2. Gluconeogenesis
  3. Glycolysis
  4. Oxidative phosphorylation
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20. Which of the following food additives is an emulsifier?
  1. Gelatin
  2. Sodium proprionate
  3. Lecithin
  4. Butylated hydroxytolune
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