PHC 6001 EXAM 2 WITH COMPLETE SOLUTIONS

PHC 6001 EXAM 2 WITH COMPLETE SOLUTIONS
Question : What is the goal of epidemiological studies?
CORRECT ANSWER: To look for an association between
an exposure and a a health outcome; determine whether that
association is causal
Question : Descriptive Studies
CORRECT ANSWER: Uses existing data that is routinely
collected; looks for disease trends in populations
Question : Analytical Studies
CORRECT ANSWER: Hypothesis-driven; looks for an
association between exposure/risk factor and health outcome;
tests and intervention
Question : What are the types of observational studies?
CORRECT ANSWER: Case-control; cohort; ecologic;
cross-sectionalIn an observational study, the exposure was
not chosen by the evaluator, they are simply observing
something already existing to see what happened
Question : What types of studies are experimental studies?
CORRECT ANSWER: Randomized trialsThe person doing
the research controls the exposure and the treatment
Question : What is the gold standard study for
epidemiological research? Why?
CORRECT ANSWER: Randomized trialBecause they
include a control treatment or intervention for the treatment
group and the comparison group and participants are
randomized to the groupsHigh status and validity and can
pick up small, modest efffectsMost closely resemble
controlled lab experiments

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