Study design: 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 · Study design

Sample item

What study follows exposed and unexposed groups over time?

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

The answer and the reasoning

D. Cohort study

This item reviews Study design; Cohort study is the best answer because it directly fits the forensic or public-health principle described.

Option by option

  • A. Ecologic only

    Ecologic only is unsupported by the key information.

  • B. Cross-sectional

    Cross-sectional is plausible but not the best answer.

  • C. Case-control only

    Case-control only does not fit the stated scenario.

  • D. Cohort study (correct)

    Correct. Cohort study matches the defining principle.

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 D, Cohort study. This item reviews Study design; Cohort study is the best answer because it directly fits the forensic or public-health principle described.

Why is "Ecologic only" not the answer?

Ecologic only is unsupported by the key information.

Why is "Cross-sectional" not the answer?

Cross-sectional is plausible but not the best answer.

Why is "Case-control only" not the answer?

Case-control only does not fit the stated scenario.

What concept does this question test?

It tests Study design in PSM. The correct option holds because: Correct. Cohort study matches the defining principle.

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 Study design?

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.