Epidemiology Review II
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- 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
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