4 papers
Supporting or Replacing Students' Reasoning? Cognitive Offloading in AI-Assisted Proof Learning
Eason Chen, Sophia Judicke, Kayla Beigh +18
We studied 153 students in an undergraduate proof-based mathematics course with staggered-access to an AI support system. Students were randomly assigned to receive an AI chatbot a…
Chat-Based Support Alone May Not Be Enough: Comparing Conversational and Embedded LLM Feedback for Mathematical Proof Learning
Eason Chen, Sophia Judicke, Kayla Beigh +18
We evaluate GPTutor, an LLM-powered tutoring system for an undergraduate discrete mathematics course. It integrates two LLM-supported tools: a structured proof-review tool that pro…
Chauhan Weighted Trajectory Analysis of combined efficacy and safety outcomes for risk-benefit analysis
Utkarsh Chauhan, Daylen Mackey, John R Mackey
Analyzing and effectively communicating the efficacy and toxicity of treatment is the basis of risk benefit analysis (RBA). More efficient and objective tools are needed. We apply…
Chauhan Weighted Trajectory Analysis reduces sample size requirements and expedites time-to-efficacy signals in advanced cancer clinical trials
Utkarsh Chauhan, Daylen Mackey, John R. Mackey
As Kaplan-Meier (KM) analysis is limited to single unidirectional endpoints, most advanced cancer randomized clinical trials (RCTs) are powered for either progression free survival…