NR 503 Chamberlain mid term Anabell Exam Study Guide with Complete Solutions
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Course
2024/2025
Institution
2024/2025
NR 503 Chamberlain mid term Anabell
Exam Study Guide with Complete
Solutions
Epidemiology - Answer-is the science of public health
Population Health - Answer-focuses on risk, data, demographics, and outcomes.
Outcomes - Answer-is the end result that follows an intervention
aggregate - Answer-...
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)
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)
Positive predictive value - Answer✔✔-is the probability that subjects with a positive screening test truly
have the disease
epidemiological triangle - Answer✔✔-1. A traditional model of infectious disease causation, known as
the Epidemiological 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.
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
Study Methods - Answer✔✔-descriptive and analytic
descriptive study AKA Natural history of disease - Answer✔✔-It is the first step in epidemiology
investigation. Used to describe the distribution of the disease and other health-related states and
events. Describes person place and time. Provided data for program planning, resource planning, and
generates a hypothesis. There are 4 types: correlational (ecologic) studies, case reports, case series, and
cross-sectional studies.
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