Midterm Exam: NR503/ NR 503 (2026/2027 Update) Population Health, Epidemiology & Statistical Principles Exam Review | Complete Guide with Questions and Verified Answers| 100% Correct| Grade A- Chamberlain

Midterm Exam: NR503/ NR 503 (2026/2027 Update) Population Health, Epidemiology & Statistical Principles Exam Review | Complete Guide with Questions and Verified Answers| 100% Correct| Grade A- Chamberlain

Midterm Exam: NR503/ NR 503 (2026/2027

Update) Population Health, Epidemiology &

Statistical Principles Exam Review |

Complete Guide with Questions and Verified

Answers| 100% Correct| Grade AChamberlain

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 —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 actual 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 actual 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