Epidemiology Review II

11 Questions | Total Attempts: 118

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Epidemiology Review II

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Questions and Answers
  • 1. 
    Explain the population risk difference
    • A. 

      This is the difference between the rate of disease in the nonexposed segment of the population and the overall rate in the population.

    • B. 

      Is designed to test preventive measures

    • C. 

      These are a form of intervention studies, two types are randomized controlled trials and quasiexperiments

  • 2. 
    Explain experimental studies
    • A. 

      This is the difference between the rate of disease in the nonexposed segment of the population and the overall rate in the population.

    • B. 

      These are a form of intervention studies, two types are randomized controlled trials and quasiexperiments

    • C. 

      Is designed to test preventive measures

  • 3. 
    Define Prophylactic trials
    • A. 

      Evaluates new treatment methods

    • B. 

      Involves the administration of a test regimen to humans to evaluate its efficacy and safety.

    • C. 

      Is designed to test preventive measures

  • 4. 
    Define Therapeutic trials
    • A. 

      Is designed to test preventive measures

    • B. 

      Evaluates new treatment methods

    • C. 

      Involves the administration of a test regimen to humans to evaluate its efficacy and safety.

  • 5. 
    Define Clinical trials
    • A. 

      Involves the administration of a test regimen to humans to evaluate its efficacy and safety.

    • B. 

      Is designed to test preventive measures

    • C. 

      Evaluates new treatment methods

  • 6. 
    What are randomized control trials
    • A. 

      Evaluates new treatment methods

    • B. 

      Are an experiment in which subjects in a population are randomly allocated into groups, usually called study and control groups.

    • C. 

      Involves the administration of a test regimen to humans to evaluate its efficacy and safety.

  • 7. 
    What are quasi-experimental designs
    • A. 

      When sensitivity tests correctly identify all potential cases as either negative or positive

    • B. 

      Describes when a definitive diagnosis that has been determined by biopsy, surgery, autopsy or other method and has been accepted as the standard.

    • C. 

      Where the investigator manipulates the study factor but does not assign individual subjects randomly to the exposed and non-exposed groups.

  • 8. 
    What is the gold standard for research designs
    • A. 

      Describes when a definitive diagnosis that has been determined by biopsy, surgery, autopsy or other method and has been accepted as the standard.

    • B. 

      Where the investigator manipulates the study factor but does not assign individual subjects randomly to the exposed and non-exposed groups.

    • C. 

      When sensitivity tests correctly identify all potential cases as either negative or positive

  • 9. 
    Why is the gold standard considered the best
    • A. 

      It helps to generalize the study to the population

    • B. 

      The standard will help to conclude that the results were true

    • C. 

      When sensitivity tests correctly identify all potential cases as either negative or positive

  • 10. 
    What is external validity
    • A. 

      This is the generalizing of the study to the population

    • B. 

      Was the conclusion true? It is the extent to which you can believe your results

    • C. 

      It is the third variable that relates to the exposure and the outcome

  • 11. 
    What is internal validity
    • A. 

      Was the conclusion true? It is the extent to which you can believe your results

    • B. 

      This is the generalizing of the study to the population

    • C. 

      It is the third variable that relates to the exposure and the outcome