Epidemiology: practice question

A PSM question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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PSM · Epidemiology

Sample item

What association measure is commonly calculated in a case-control study?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

A. Odds ratio

The defining Epidemiology principle supports Odds ratio; it directly accounts for the forensic observation, evidence requirement, or public-health measure in the question.

Option by option

  • A. Odds ratio (correct)

    Correct. Odds ratio best fits the important clue in this sample.

  • B. Incidence density directly

    Incidence density directly may be useful elsewhere but is not the best answer here.

  • C. Relative risk directly

    Relative risk directly does not establish the requested epidemiology conclusion.

  • D. Prevalence only

    Prevalence only is not consistent with the finding or appropriate action described.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

More PSM questions

Questions about this PSM question

What is the answer to this PSM question?

The best answer is A, Odds ratio. The defining Epidemiology principle supports Odds ratio; it directly accounts for the forensic observation, evidence requirement, or public-health measure in the question.

Why is "Incidence density directly" not the answer?

Incidence density directly may be useful elsewhere but is not the best answer here.

Why is "Relative risk directly" not the answer?

Relative risk directly does not establish the requested epidemiology conclusion.

Why is "Prevalence only" not the answer?

Prevalence only is not consistent with the finding or appropriate action described.

What concept does this question test?

It tests Epidemiology in PSM. The correct option holds because: Correct. Odds ratio best fits the important clue in this sample.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Epidemiology?

Practise biostatistics with small calculations until sensitivity, predictive values and risk measures are automatic. Then use the flashcards and the other PSM questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.