Shambhavi Bhushan Danielle R. Thomas Conrad Borchers Isha Raghuvanshi Ralph Abboud Erin Gatz Shivang Gupta Kenneth R. Koedinger Detecting LLM-Generated Short Answers and Effects on Learner Performance. 47-60 2025 EC-TE (1) https://doi.org/10.1007/978-3-032-03870-8_4 conf/ectel/2025-1 db/conf/ectel/ectel2025-1.html#BhushanTBRAGGK25 streams/conf/ectel