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Midterm Exam: NR503/ NR 503 (2026/2027 Update) Population Health, Epidemiology & Statistical Principles Exam Review Complete Guide with Questions and Answers - Chamberlain
Midterm Exam: NR503/ NR 503 (2026/2027
Update) Population Health, Epidemiology &
Statistical Principles Exam Review
Complete Guide with Questions and
Answers Chamberlain
Q: Define vital statistics
Answer:
statistics on live births, deaths, fetal deaths, marriages and divorces.
Q: Define cases
Answer:
set of criteria used in making a decision as to whether an individual has a disease or health event
of interest
Q: Define Social Justice
Answer:
the view that everyone deserves equal rights and opportunities â€â€this includes the right to good
health
Q: Define Inter-professional collaboration
Answer:
The idea of sharing and implies collective action oriented toward a common goal, in this case,
improving the quality and safety of patient care. It involves responsibility, accountability,
coordination, communication, cooperation, assertiveness, mutual respect, and autonomy.
Q: Define Healthy People 2020
Answer:
aims to reach four overarching goals: 1.Attain high-quality, longer lives free of preventable
disease, disability, injury, and premature death, 2. Achieve health equity, eliminate disparities,
and improve the health of all groups 3.Create social and physical environments that promote
good health for all. 4. Promote quality of life, healthy development, and healthy behaviors across
all life stages.
Q: Define Determinants of care/health
Answer:
The range of personal, social, economic, and environmental factors that influence health status
are known ...
Q: Define risk analysis
Answer:
the characterization of the potential adverse health effects of human exposures to environmental
hazards
Q: Define health disparities
Answer:
the difference in health statuses between various groups (populations).
Q: Define Sensitivity
Answer:
measures the proportion of positives that are correctly identified as such (e.g., the
percentage of sick people who are correctly identified as having the condition)
Q: Define Specificity
Answer:
(also called the true negative rate) measures the proportion of negatives that are correctly
identified as such (e.g., the percentage of healthy people who are correctly identified as not
having the condition)
Q: Define Positive predictive value
Answer:
is the probability that subjects with a positive screening test truly have the disease
Q: Define epidemiological triangle
Answer:
1. A traditional model of infectious disease causation, known as the Epidemiologic Triad is
depicted in Figure 2. The triad consists of an external agent, a host and an environment in which
host and agent are brought together, causing the disease to occur in the host.
Q: Define confounding variable
Answer:
is an "extra" variable that you didn't account for. They can ruin an experiment and give you
useless results. They can suggest there is correlation when in fact there isn't. They can even
introduce bias. That's why it's important to know what one is, and how to avoid getting them into
your experiment in the first place
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