arXiv:2604. 08870v3 Announce Type: replace-cross Abstract: Student dropout is a persistent concern in Learning Analytics, yet comparative studies frequently evaluate predictive models under heterogeneous protocols, prioritizing discrimination over temporal interpretability and calibration.
By Rafael da Silva, Jeff Eicher, Gregory Longo
The study audited seven public educational prediction datasets using four pre‑modeling reliability checks—baseline gap, split instability, null separation, and metadata adequacy under group‑aware holdout. Only three datasets passed all checks; the others failed either group‑aware generalization tests or lacked necessary provenance metadata. The audit revealed that cross‑group fragility, rather than weak iid performance, was the dominant failure mode, and that increasing model complexity did not resolve these structural issues.
By Yan Ma, Lizhuo Zhang
OBER+ extends an institutional attainment platform to bridge the gap between measured learning outcome shortfalls and corrective actions. It aggregates attainment across course deliveries, flags shortfalls, grades them against regulator cutoffs, records decisions linked to evidence‑annotated practices, logs changes, and quantifies subsequent improvements. The system also ensures outcomes are compared only when unchanged, preventing misleading comparisons across redefined outcomes, and has identified real defects in institutional data through rule‑based analysis.
By Elakkiya Rajasekar
arXiv:2606. 28881v1 Announce Type: cross Abstract: Predicting student performance and characterizing metacognitive calibration are essential for personalization in intelligent tutoring systems.
By Gurdeep Singh Virdee
arXiv:2604. 08874v3 Announce Type: replace-cross Abstract: This study proposes a temporal modeling framework with a counterfactual policy-simulation layer for student dropout in higher education, using LMS engagement data and administrative withdrawal records.
By Rafael da Silva, Jeff Eicher, Gregory Longo
The study analyzes 22 OULAD asynchronous online courses (over 22,000 learners) using Zigzag Persistent Homology to track the number of disconnected behavioral clusters, denoted $eta_0$. It finds that changes in $eta_0$ strongly co‑vary with active learner counts, indicating that $eta_0$ is a participation‑sensitive indicator rather than a cause of dropout. Assessment deadlines trigger fragmentation in 82.6% of cases and the full Fragment First, Converge Later cycle in 60.2%, with long‑term fragmentation dominating 90.9% of courses.
By Hitoshi Inoue, Koichi Yasutake