ATI RN
Epidemiology Final Exams Questions and Answers Questions
Question 1 of 5
What is the main purpose of matching in a case-control study?
Correct Answer: C
Rationale: Matching (C) controls confounders (e.g., age) in case-control studies. A, B, and D are incorrect or unrelated.
Question 2 of 5
Which of the following best describes a false negative result?
Correct Answer: B
Rationale: False negative (B) is missing a diseased person (e.g., negative test despite cancer). A is false positive, C and D are correct results.
Question 3 of 5
Which of the following is an example of secondary prevention?
Correct Answer: B
Rationale: Secondary prevention (B) detects early disease (e.g., cancer screening). A and D are primary, C is tertiary.
Question 4 of 5
Which of the following is a measure of the burden of a disease in a population?
Correct Answer: B
Rationale: Prevalence (B) shows disease burden (e.g., total diabetes cases). A is onset, C is deaths, D is severity.
Question 5 of 5
What does the term 'effect modification' refer to?
Correct Answer: B
Rationale: Effect modification (B) changes association (e.g., age alters smoking-cancer risk). A, C, and D are distinct.