A.
To increase the cost of the study.
✓
B.
To control for the placebo effect and natural history of the disease.
✓
C.
To make the study longer.
✓
D.
To identify only severe side effects.
✓
A.
Pre-clinical studies.
✓
D.
Cumulative Incidence.
✓
A.
Dismiss it as random chance.
✓
B.
Conduct an environmental epidemiology investigation to identify potential occupational or environmental exposures.
✓
C.
Blame the local hospital for misdiagnosis.
✓
D.
Issue a general warning about cancer.
✓
C.
Positive Predictive Value.
✓
D.
Negative Predictive Value (NPV).
✓
B.
Effectiveness (or pragmatic) trial (Phase IV).
✓
C.
Pre-clinical research.
✓
A.
Increase law enforcement presence in the neighborhood.
✓
B.
Conduct a rapid epidemiological investigation to identify the substances involved, common sources, and affected demographics.
✓
C.
Blame the individuals for drug use.
✓
D.
Wait for the number of deaths to stabilize.
✓