Current-submission evidence and prior traces predict near-term persistent failure with moderate discrimination under student-disjoint evaluation¶
Claim · All claims
Evidence · 1 study · designr2·q2
Currency · newest study 2026 · not yet checked against its sources · not reviewed by a person · recheck by 2029: tool and model accuracy changes quickly
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q2 i? A validation-selected logistic regression model achieved test PR-AUC of 0.550 and ROC-AUC of 0.681 for predicting persistent failure on held-out students. → Shihao Wang 2026
Evidence¶
Shihao Wang 2026¶
Shihao Wang. (2026). A Risk-Adaptive and Evidence-Constrained Framework for Generative AI Feedback in Programming Education. https://arxiv.org/abs/2609.29874 doi:10.48550/arxiv.2609.29874
q2 · i? · design · r2
Retrospective computational study of 2993 failed-submission states from 215 students with student-disjoint 60/20/20 partitions. The validation-selected logistic regression achieved "a PR-AUC of 0.550" and ROC-AUC 0.681 with a Brier score of 0.222 on the held-out test partition.
"On held-out students, it achieved a PR-AUC of 0.550 (student-cluster 95% CI [0.361, 0.676]), ROC-AUC of 0.681 [0.585, 0.741], and Brier score of 0.222."
Discussion¶
Related Claims¶
- The selected MLP outperformed gradient boosting for persistent-failure prediction in paired student bootstrap comparison — related
- Logistic regression with the best feature vector outperforms all other approaches on 4 of 9 datasets while DKT leads on the remaining 5, and Markov process methods lag behind — related
- Secondary outcomes differed in predictability: near-term related-task performance was hardest while 7–28-day performance showed a longitudinal signal — related
- Question and observed-coverage features retrospectively predict high-divergence questions with AUC 0.774, but the model is not validated for new-query routing — related
- Explainable models including logistic regression, kNN and a Bernoulli Mixture Model all reach around 78% accuracy in predicting question-level pass/fail, with well-calibrated probabilities — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
persistent-failure-moderate-discrimination-student-disjoint |
title |
Current-submission evidence and prior traces predict near-term persistent failure with moderate discrimination under student-disjoint evaluation |
description |
Current-submission evidence and prior traces predict near-term persistent failure with moderate discrimination under student-disjoint evaluation |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2026 |
recheck_by |
2029 |
generated |
by process:wiki-ingest on 2026-10-11 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — shihao-wang-2026 |
Frontmatter is the page's machine-readable record — see the Schema & Guide.