COMPLETE WITH CORRECT ANSWERS
\.In which of the following study designs is the outcome in a group compared both
before and after an assigned intervention?
Select one:
A. Within-group design
B. Between-group design
C. Factorial design
D. Random assignment - ANSWERS -A. Within-group design
\.True or False? A placebo is an active substance or treatment given to satisfy a
patient's expectation of treatment.
Select one:
True
False - ANSWERS -False
\.__________ refers to a conclusion about the causal relationship between an
exposure and outcome.
Select one:
A. Statistical inference
B. Confidence interval
, C. Causal inference
D. Indirect causal association - ANSWERS -C. Causal inference
\.Which of the following methods of hypothesis formulation states that the
frequency or strength of a risk factor varies with frequency of the disease or
condition?
Select one:
A. Method of difference
B. Method of agreement
C. Method of concomitant variation
D. Method of consistency of association - ANSWERS -C. Method of concomitant
variation
\.An epidemic that begins with one source then spreads from person to person is
called a:
Select one:
A. common-source epidemic.
B. propagated epidemic.
C. disease cluster.
D. mixed epidemic. - ANSWERS -D. mixed epidemic.
\.True or False? In a sentinel event, the disease or adverse health outcome has a
known cause.
Select one: