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arxiv: 2605.21413 · v2 · pith:FJYSECMSnew · submitted 2026-05-20 · 💻 cs.AI

Teaching AI Through Benchmark Construction: QuestBench as a Course-Based Practice for Accountable Knowledge Work

Pith reviewed 2026-05-22 09:39 UTC · model grok-4.3

classification 💻 cs.AI
keywords AI educationbenchmark constructiondeep research systemsQuestBenchstudent evaluationaccountable knowledge workhumanities benchmarks
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The pith

Student-designed questions show AI deep research systems pass only 17 percent of expert tasks on average.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper establishes that AI education benefits from students actively constructing benchmarks to test systems rather than only learning to prompt and use them. Students convert their disciplinary knowledge into verifiable questions, peer-review the designs to remove ambiguity and shortcuts, then run multiple AI systems against the resulting tasks. This produces QuestBench, a set of 256 questions spanning 14 humanities and social-science fields, on which thirteen systems average a 16.85 percent question-level pass rate. The low scores demonstrate that fluent, source-backed AI responses can still miss required queries, sources, terms, or evidence standards. Student reflections indicate the exercise teaches them to treat professional knowledge as the standard for judging AI outputs instead of treating AI as a simple retrieval tool.

Core claim

QuestBench is generated when students turn domain knowledge into expert-level questions that peers review for clarity and completeness; evaluation of thirteen deep research systems on the 256 questions yields a mean pass rate of 16.85 percent, with the strongest system, GPT-5.5, reaching 57.58 percent. These results show that even answers backed by sources can fail on precise query formulation, source choice, terminology, or evidence requirements. Reflections from student contributors indicate that constructing and applying the benchmark helps them see disciplinary expertise as the basis for evaluating AI rather than as content that machines simply fetch.

What carries the argument

The classroom benchmark-construction cycle in which students create, review, and apply expert questions to evaluate AI deep research systems, producing both the QuestBench dataset and direct experience of defining trustworthy answer standards.

If this is right

  • Fluent AI answers can still fail expert tasks by selecting the wrong query focus, source, term, or evidence level.
  • Students gain practice specifying what counts as a trustworthy answer when they design and critique the questions.
  • The activity supplies a reusable classroom format that turns AI evaluation into an educational exercise rather than a black-box use.
  • Reflections show students come to view their own knowledge as the criterion for assessing machine outputs.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • The same student-led construction method could be tested in STEM or professional-training settings to map AI failure modes across different knowledge domains.
  • Collected student questions could serve as additional evaluation or fine-tuning data to improve future deep research systems.
  • Widespread classroom use might gradually shift AI literacy curricula from usage skills toward explicit training in output judgment.

Load-bearing premise

Student-created and peer-reviewed questions form unbiased expert-level tests whose failures reflect genuine AI limitations rather than flaws in question design or grading criteria.

What would settle it

If the same AI systems were tested on an equivalent set of questions written and reviewed by practicing domain experts and produced markedly higher pass rates, the claim that student benchmarks reliably expose AI shortcomings would be undermined.

Figures

Figures reproduced from arXiv: 2605.21413 by Chongyang Pan, Haiyang Shen, Jiuzheng Wang, Mugeng Liu, Siqi Zhong, Taian Guo, Weichen Bi, Wenchun Jing, Xiaoying Bai, Yudong Han, Yun Ma, Zhiyang Chen.

Figure 1
Figure 1. Figure 1: Conceptual framework of QUESTBENCH as course-based benchmark construction for teaching accountable AI-mediated knowledge work. Students first encounter deep research systems as a practical tool, then use benchmark construction to design expert-level questions, test shortcuts, validate answers, evaluate models, and analyze failures. The course links tool exposure with question design, disciplinary standards… view at source ↗
Figure 2
Figure 2. Figure 2: Course and technical pipeline for QUESTBENCH. Students transform disciplinary knowledge into expert-level question packages, then filter them through preliminary screening, answer verification, grading￾criteria audit, anti-shortcut validation, and domain normalization. The same artifacts are then used for model evaluation, scoring, and failure analysis, turning task design into practice in accountable AI-m… view at source ↗
Figure 3
Figure 3. Figure 3: Left: Distribution across normalized domain groups. Right: Empirical cross-model question pass-rate [PITH_FULL_IMAGE:figures/full_fig_p008_3.png] view at source ↗
Figure 4
Figure 4. Figure 4: Left: score distributions across models. Right: average tool calls and fraction of runs exceeding 50 [PITH_FULL_IMAGE:figures/full_fig_p009_4.png] view at source ↗
Figure 5
Figure 5. Figure 5: Domain and error analysis. Left: mean scores for the largest normalized domains across the thirteen [PITH_FULL_IMAGE:figures/full_fig_p010_5.png] view at source ↗
read the original abstract

As AI becomes part of everyday learning, many courses teach students to use it mainly as a productivity tool: how to prompt, search, summarize, write, code, and use tools more efficiently. We argue that AI education also needs a setting in which students learn to test AI and understand their own role in judging machine-produced knowledge. To this end, we introduce a course-based practice that teaches AI through benchmark construction, using deep research systems as a concrete example of AI-era knowledge work. Students turn disciplinary knowledge into verifiable expert-level questions, review one another's designs for ambiguity and shortcuts, and evaluate AI systems on the resulting tasks. This activity gives students direct exposure to a powerful tool while asking them to specify what a trustworthy answer would require. The produced benchmark, QuestBench, consists of 256 questions across 14 humanities and social-science domains. Evaluation on QuestBench shows that student-designed tasks reveal hidden failures in current deep research systems: across thirteen evaluated systems, the mean question-level pass rate is only 16.85%, and the best-performing system, GPT-5.5, reaches a 57.58% pass rate. The failures are educationally useful because they show how fluent, source-backed answers can still miss the right query, source, term, or evidence standard. Reflections from five student contributors suggest that benchmark construction can help students see professional knowledge not only as content AI may retrieve, but as the basis for judging AI outputs. We present QuestBench as a benchmark artifact and as a reusable classroom setting for a larger educational question: how students can remain responsible knowledge actors as AI enters learning and professional work. The dataset is available at https://huggingface.co/datasets/PKUAIWeb/QuestBench/tree/main.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

2 major / 2 minor

Summary. The manuscript introduces QuestBench, a benchmark of 256 student-constructed questions across 14 humanities and social-science domains, created via a course activity in which students draft expert-level questions from disciplinary knowledge, perform mutual peer reviews for ambiguity and shortcuts, and then evaluate 13 AI deep-research systems. It reports a mean question-level pass rate of 16.85% (best system GPT-5.5 at 57.58%), argues that these results expose hidden limitations in current systems, and presents the activity as an educational practice for teaching accountable knowledge work. The dataset is released publicly.

Significance. If the questions are shown to be unambiguous and calibrated to expert standards, the work supplies both a reusable benchmark artifact and a concrete classroom method that shifts AI education from tool-use instruction toward critical evaluation of machine-generated knowledge. The low pass rates, if robust, would constitute falsifiable evidence of current limitations in source selection, evidence standards, and query interpretation for non-STEM research tasks.

major comments (2)
  1. [Abstract] Abstract: The headline claim that student-designed tasks reveal genuine AI limitations (mean 16.85% pass rate) is load-bearing on the assumption that the 256 questions are free of ambiguities, shortcuts, and design flaws. The described construction process relies exclusively on student drafting and mutual reviews; no inter-annotator agreement statistics, external domain-expert validation, or quantitative difficulty calibration are reported. This directly affects whether the observed failures can be attributed to the AI systems rather than to question wording or evaluation criteria.
  2. [Evaluation] Evaluation description: The exact operational definition of a 'pass' (e.g., whether partial credit, source citation requirements, or human judgment rubrics are used) is not specified. Without this, the reported rates (including the 57.58% figure for GPT-5.5) cannot be independently verified or compared across systems.
minor comments (2)
  1. [Abstract] The abstract states 14 domains but provides no list or distribution; adding a brief table or enumeration would improve clarity.
  2. The reflections from five student contributors are referenced but not excerpted; including one or two concrete examples of how benchmark construction changed their view of AI would strengthen the educational argument without lengthening the paper substantially.

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for their detailed and constructive comments. We address the major concerns regarding the robustness of the benchmark construction and the clarity of the evaluation protocol below. Where appropriate, we will revise the manuscript to incorporate additional details and clarifications.

read point-by-point responses
  1. Referee: [Abstract] Abstract: The headline claim that student-designed tasks reveal genuine AI limitations (mean 16.85% pass rate) is load-bearing on the assumption that the 256 questions are free of ambiguities, shortcuts, and design flaws. The described construction process relies exclusively on student drafting and mutual reviews; no inter-annotator agreement statistics, external domain-expert validation, or quantitative difficulty calibration are reported. This directly affects whether the observed failures can be attributed to the AI systems rather than to question wording or evaluation criteria.

    Authors: We acknowledge the importance of demonstrating that the questions are unambiguous and aligned with expert standards. The peer review process was intended to mitigate ambiguities and shortcuts, with students instructed to flag issues in each other's questions. However, we did not collect or report inter-annotator agreement statistics, nor did we obtain validation from external domain experts outside the student cohort. Quantitative difficulty calibration was not performed a priori. These are valid points. In the revised version, we will provide a more detailed account of the peer review guidelines and process, include examples of revised questions, and explicitly discuss these as limitations of the current study, proposing external validation as future work. We maintain that the low pass rates, even if some questions have minor issues, still indicate challenges for AI systems, but we will tone down the claim to reflect the construction method. revision: partial

  2. Referee: [Evaluation] Evaluation description: The exact operational definition of a 'pass' (e.g., whether partial credit, source citation requirements, or human judgment rubrics are used) is not specified. Without this, the reported rates (including the 57.58% figure for GPT-5.5) cannot be independently verified or compared across systems.

    Authors: We agree that the operational definition of a 'pass' must be clearly specified for reproducibility. We will add a dedicated subsection in the revised manuscript that provides the exact operational definition of a 'pass', including details on the human judgment rubric, source citation requirements, and handling of partial answers. This clarification will enable independent verification and comparison. revision: yes

Circularity Check

0 steps flagged

No circularity: direct empirical evaluation on newly constructed benchmark

full rationale

The paper describes a classroom activity in which students create 256 questions across 14 domains, perform peer reviews for ambiguity and shortcuts, and then run direct evaluations of 13 AI systems, reporting observed pass rates (mean 16.85%, best system 57.58%). No equations, fitted parameters, predictions derived from prior fits, or self-citation chains appear in the provided text. The central claims are straightforward measurements on an externally released dataset; they do not reduce to the inputs by construction or rely on unverified self-referential premises.

Axiom & Free-Parameter Ledger

0 free parameters · 1 axioms · 0 invented entities

The central claim rests on the assumption that student-constructed questions validly probe AI capabilities; no free parameters or invented entities are introduced.

axioms (1)
  • domain assumption Student-designed and peer-reviewed questions can serve as reliable expert-level tests for AI deep research systems.
    Invoked when claiming that low pass rates reveal hidden failures rather than question artifacts.

pith-pipeline@v0.9.0 · 5892 in / 1267 out tokens · 55507 ms · 2026-05-22T09:39:12.425645+00:00 · methodology

discussion (0)

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