Biostatistics: 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 · Biostatistics

Sample item

What does a confidence interval provide around an estimate?

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

The answer and the reasoning

B. Range of plausible values

A confidence interval communicates the precision of an estimate by giving a range of values compatible with the data and statistical assumptions.

Option by option

  • A. Proof of causation

    They do not by themselves prove causation.

  • B. Range of plausible values (correct)

    Correct: confidence intervals express precision and plausible estimate range.

  • C. Guaranteed benefit

    They do not guarantee clinical benefit.

  • D. Study eligibility

    Eligibility criteria are defined separately in study design.

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 B, Range of plausible values. A confidence interval communicates the precision of an estimate by giving a range of values compatible with the data and statistical assumptions.

Why is "Proof of causation" not the answer?

They do not by themselves prove causation.

Why is "Guaranteed benefit" not the answer?

They do not guarantee clinical benefit.

Why is "Study eligibility" not the answer?

Eligibility criteria are defined separately in study design.

What concept does this question test?

It tests Biostatistics in PSM. The correct option holds because: Correct: confidence intervals express precision and plausible estimate range.

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 Biostatistics?

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.