70/100

Moderate evidence

Trace: a gain and a problemPublished recordEducationThe Trace

The use of large language models in generating multiple choice questions for health professions education: A systematic review and network meta-analysis

Truvace record
TRV-2026-2821raw data (JSON)
Version
v1Published
First published
Evidence type
Systematic review or meta-analysis
Sources
1 sourcePeer-reviewed
sha256
2c4518babe81…check it

PURPOSE: Large language models (LLMs) have the potential to change medical education. Whether LLMs can generate multiple-choice questions (MCQs) that are of similar quality to those created by humans is unclear. This investigation assessed the quality of MCQs generated by LLMs compared to humans. METHODS: This review was registered with PROSPERO (CRD42025608775). A systematic review and frequentist random-effects network meta-analysis (NMA) or pairwise meta-analysis was performed. Ovid MEDLINE, Ovid EMBASE, and…

56Gain side

How the two sides scoreClose call

56Problem side

The gain

In a network meta-analysis of studies comparing AI and human question writers, ChatGPT 4 produced multiple-choice questions rated similar to human-written ones for relevance, clarity and distractor quality, though the evidence was graded very low certainty.

The problem

In the same network meta-analysis, Llama 2 questions rated worse than human-written ones for clarity (mean difference -1.21 on a 10-point scale) and distractor quality (-1.50), and ChatGPT 3.5 did worse than ChatGPT 4 and Llama 2 on both.

A fixed formula sets both scores from the evidence and its sources. Reader votes don’t move them.

What the scores mean

G is the gain side, out of 100. It goes up when the gain is specific, when it measurably helped people and when the sources behind it are strong.

P is the problem side, out of 100. It goes up when the problem is specific, when it measurably hurt people and when the sources behind it are strong.

What this doesn’t fix

All main comparisons were rated very low certainty on GRADE, and the authors say further studies are needed that directly compare these models with human-generated questions and give the questions to students.

Sources

1 on file
  1. PLOS Onedoi:10.1371/journal.pone.0340277
    Peer-reviewed2026-01-02

What the review found when it combined the studies

These are the review’s own pooled results, copied from its abstract. Truvace did not recalculate them.

  • Item discrimination index of ChatGPT 3.5 questions compared with human questions

    Mean difference −0.07 (95% CI −0.34 to 0.20)

    search to November 1, 2024

    The review’s own words
    Pairwise analysis between ChatGPT 3.5 and humans demonstrated that there is no significant difference in the average item discrimination index (MD −0.07; 95% CI: −0.34, 0.20; GRADE: VERY LOW) (Fig 7a).
  • Relevance of multiple-choice questions generated by Llama 2 compared with humans

    Mean difference −0.76 (95% CI −1.27 to −0.25)

    search to November 1, 2024

    The review’s own words
    but MCQs generated by Llama 2 may be less relevant than those created by humans (MD −0.76; 95% CI: −1.27, −0.25; GRADE: VERY LOW)
  • Difficulty index of multiple-choice questions from ChatGPT 3.5 compared with humans

    Mean difference 5.86 (95% CI −8.49 to 20.20)

    search to November 1, 2024

    The review’s own words
    Pairwise analysis between studies comparing ChatGPT 3.5 and humans demonstrated that there is no significant difference in the difficulty index (MD 5.86; 95% CI: −8.49, 20.20; GRADE: VERY LOW) (Fig 6a).
  • Point biserial correlation of ChatGPT 3.5 questions compared with human questions

    Mean difference −0.05 (95% CI −0.21 to 0.11)

    search to November 1, 2024

    The review’s own words
    Pairwise meta-analysis demonstrated no significant difference in scores between the Chat GPT 3.5 and human generated questions (MD: −0.05; 95% CI: −0.21 to 0.11; GRADE: VERY LOW) (Fig 8a).

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Cite this record

v1

Truvace Impact Record TRV-2026-2821, v1: “The use of large language models in generating multiple choice questions for health professions education: A systematic review and network meta-analysis.” Truvace, 2026-11-12. /record/TRV-2026-2821 (accessed on the day you copy it). sha256 2c4518babe81e5f3…

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