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NR 503 Epidemiology Final Exam ( Version 1) / NR503 Final Exam 2024/2025: Population Health, Epidemiology & Statistical Principles: Chamberlain College Of Nursing | 100 % VERIFIED ANSWERS, GRADE A( LATEST UPDATE) $18.39
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NR 503 Epidemiology Final Exam ( Version 1) / NR503 Final Exam 2024/2025: Population Health, Epidemiology & Statistical Principles: Chamberlain College Of Nursing | 100 % VERIFIED ANSWERS, GRADE A( LATEST UPDATE)
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NR 503 Epidemiology Final Exam ( Version 1) / NR503 Final Exam 2024/2025: Population Health, Epidemiology & Statistical Principles: Chamberlain College Of Nursing | 100 % VERIFIED ANSWERS, GRADE A( LATEST UPDATE)

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  • May 17, 2024
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NR 503 EPIDEMIOLOGY FINAL EXAM QUESTIONS AND ANSWERS

Question 1:

Which of the following study designs is most appropriate for determining the
prevalence of a disease in a population at a specific point in time?

A) Cohort study
B) Case-control study
C) Cross-sectional study
D) Randomized controlled trial

Answer: C) Cross-sectional study

Question 2:

In a cohort study, researchers follow a group of people over time to see if they
develop a specific outcome. What is the primary measure of association used in
cohort studies?

A) Odds ratio
B) Risk ratio
C) Incidence rate
D) Prevalence rate

Answer: B) Risk ratio

Question 3:

What type of bias occurs when participants in a study are systematically
different from those who do not participate?

A) Selection bias
B) Information bias

,C) Confounding bias
D) Recall bias

Answer: A) Selection bias

Question 4:

Which of the following is NOT a component of the epidemiologic triangle?

A) Agent
B) Host
C) Environment
D) Vector

Answer: D) Vector

Question 5:

A case-control study is best suited for studying which of the following?

A) Rare diseases
B) Common diseases
C) Diseases with long latency periods
D) Both A and C

Answer: D) Both A and C

Question 6:

Which measure of central tendency is most appropriate to use when the data are
skewed?

A) Mean
B) Median
C) Mode
D) Range

Answer: B) Median

,Question 7:

What is the primary goal of an epidemiologic surveillance system?

A) To determine the cause of disease
B) To monitor the distribution of disease
C) To test the effectiveness of treatments
D) To develop new diagnostic tools

Answer: B) To monitor the distribution of disease

Question 8:

Which term describes the number of new cases of a disease that occur in a
specified period of time in a population at risk for developing the disease?

A) Prevalence
B) Incidence
C) Morbidity
D) Mortality

Answer: B) Incidence

Question 9:

What type of epidemiologic study design involves comparing individuals with a
disease to individuals without the disease to identify potential causes?

A) Cohort study
B) Case-control study
C) Cross-sectional study
D) Ecological study

Answer: B) Case-control study

Question 10:

Which of the following is an example of a primary prevention strategy?

, A) Mammography screening for breast cancer
B) Statin use to lower cholesterol in patients with heart disease
C) Immunization against measles
D) Rehabilitation exercises for stroke patients

Answer: C) Immunization against measles

Question 11:

In a randomized controlled trial, what is the purpose of randomization?

A) To ensure the study is double-blind
B) To reduce selection bias
C) To increase the sample size
D) To ensure equal treatment of all participants

Answer: B) To reduce selection bias

Question 12:

Which statistical test would be most appropriate to compare the means of two
independent groups?

A) Chi-square test
B) Paired t-test
C) Independent t-test
D) ANOVA

Answer: C) Independent t-test

Question 13:

What is a confounder in epidemiologic research?

A) A variable that is controlled for in the study
B) A variable that is an intermediate step in the causal pathway
C) A variable that is associated with both the exposure and the outcome but is not an

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