3 papers
stat.AP2026
Analytics for Quality Assurance for Item Pools (AQuAP): Monitoring and Maintaining Item Bank Health in AI-Driven Assessment Systems
Alina A. von Davier, Xiaowan Zhang, Yigal Attali +5
The large-scale digitization of educational assessment has made the continuous oversight of item banks both essential and complex. This paper presents Analytics for Quality Assuran…
stat.AP2026
S2A3: Thompson Sampling and Stochastic Exposure Control for High-Stakes CATs
James Sharpnack, Alexander Tsigler, J. R. Lockwood +2
High-stakes computerized adaptive tests (CATs) require a continuous supply of calibrated items, yet traditional item piloting is slow, expensive, and operationally hazardous. We in…
stat.ML2025
Benign Overfitting and the Geometry of the Ridge Regression Solution in Binary Classification
Alexander Tsigler, Luiz F. O. Chamon, Spencer Frei +1
In this work, we investigate the behavior of ridge regression in an overparameterized binary classification task. We assume examples are drawn from (anisotropic) class-conditional…