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NR 503 Midterm Exam 2025 – 95 Questions & Answers | Epidemiology, Study Design, Population Health | Chamberlain University

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This document presents a complete set of 95 expertly crafted midterm questions with correct answers for NR 503: Population Health, Epidemiology, and Statistical Principles, a core course in graduate-level nursing and healthcare programs at Chamberlain University. Fully aligned with the 2025/2026 academic year, this resource covers key foundational concepts tested in NR 503, including epidemiologic calculations, risk measurement, study designs, public health surveillance, and preventive strategies. It serves as a vital review tool for students pursuing Master of Science in Nursing (MSN), Doctor of Nursing Practice (DNP), or other advanced practice nursing (APRN) programs, especially those focused on community, public health, or primary care tracks. Key topics include: Epidemiological measures: incidence, prevalence, morbidity, mortality Study designs: cohort, case-control, cross-sectional, RCTs Concepts of risk: absolute risk, relative risk, attributable risk, odds ratio Prevention strategies: primary, secondary, tertiary Validity, reliability, sensitivity, specificity, PPV, NPV Errors and biases: random, systematic, confounding Public health principles: surveillance, health disparities, Triple Aim Tools: epidemiologic curve, epidemiologic triad Each question is followed by the correct and verified answer to help students master critical content for midterm success. Whether used for self-study, group prep, or guided review, this document offers essential support for academic and professional performance. Recommended for: Chamberlain University students in NR 503 or equivalent graduate epidemiology courses MSN and DNP students in population health, family nurse practitioner (FNP), or public health nursing tracks Nursing students preparing for midterms, certification, or board exams involving epidemiologic and population-based content Healthcare professionals seeking to reinforce foundational knowledge in evidence-based practice and public health strategy Keywords: NR 503 midterm, epidemiology questions, population health exam, study design quiz, incidence vs prevalence, relative risk, screening validity, PPV NPV sensitivity, morbidity and mortality, descriptive epidemiology, health disparities, cohort vs case-control, RCTs, systematic error, confounding bias, Chamberlain nursing, MSN DNP FNP exam

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Uploaded on
September 24, 2025
Number of pages
12
Written in
2025/2026
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NR 503 Midterm Chamberlain 2025/2026
Exam Questions and Answers | A+ Score
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The study of disease distribution within populations and the risk factors that

affect increases or decreases in distribution. - 🧠 ANSWER

✔✔Epidemiology


Focuses on risk, data, demographics and outcomes - 🧠 ANSWER

✔✔Population Health


The end result that follows an intervention - 🧠 ANSWER ✔✔Outcome


A group of persons who share one or more traits or characteristics without

necessarily having had any direct social connection.

Examples:

, Female doctors (all are female, all are doctors, all are both) - 🧠 ANSWER

✔✔Aggregate


Composed of multiple aggregates - 🧠 ANSWER ✔✔Community


Compiled information - 🧠 ANSWER ✔✔Data


Measures the existence of all current cases within a time frame


Think: Prev-A-lence = ALL or (P)resence - 🧠 ANSWER ✔✔Prevalence


Measures the appearance of new cases


Think: What is "in" is "new" - 🧠 ANSWER ✔✔Incidence


Is the ongoing, systematic collection, analysis, interpretation, and

dissemination of health data to help guide public health decision making

and action. - 🧠 ANSWER ✔✔Surveillance


Increased chance of poor health outcome - 🧠 ANSWER ✔✔High Risk


The presence of disease/illness in a population or aggregate

Morbidity = disease

The 2 primary measures are incidence and prevalence. - 🧠 ANSWER

✔✔Morbidity

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