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ATI RN · ATI Community Health · Descriptive Epidemiology Questions

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Which of the following is a strategy to control for confounding in the design phase of a study?

A. Stratification

B. Multivariate analysis

C. Matching

D. Blinding

Expert Explanatory Rationale

Correct Answer: Matching

Question 2 of 5

When creating a bar chart, the decision to use vertical or horizontal bars is usually based on:

A. The magnitude of the data being graphed and hence the scale of the axis

B. Whether the data being graphed represent numbers or percentages

C. Whether the creator is an epidemiologist (who almost always use vertical bars)

D. Which looks better, such as whether the label fits below the bar

Expert Explanatory Rationale

Correct Answer: Which looks better, such as whether the label fits below the bar

Question 3 of 5

Vital statistics provide an archive of certain health data. These data do not become surveillance data until they are analyzed, interpreted, and disseminated with the intent of influencing public health decision-making or action.

A. TRUE

B. FALSE

C. ALL

D. None

Expert Explanatory Rationale

Correct Answer: TRUE

Question 4 of 5

Which of the following statements is true about a highly sensitive test?

A. It is good at ruling in disease

B. It has a high false-positive rate

C. It is good at ruling out disease

D. It has a high false-negative rate

Expert Explanatory Rationale

Correct Answer: It is good at ruling out disease

Question 5 of 5

What is the purpose of surveillance in epidemiology?

A. To diagnose individual cases

B. To monitor and control disease spread

C. To provide treatment to patients

D. To identify risk factors

Expert Explanatory Rationale

Correct Answer: To monitor and control disease spread

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