ERM Tutor-AI
Master's thesis, Saarland University
An AI tutor for the Empirical Research Methods course. It answers from the course's own lecture materials using retrieval-augmented generation, shows students where each answer comes from, and responds like a tutor with reflection and follow-up questions.
- Rated 6.75 / 7 by course instructors, against 6.00 for ChatGPT-4o (p < .001)
- Answers about 30% shorter and more consistent
- Designed in four interface iterations (design-based research)
Python, GPT-4o, LangChain, ChromaDB, Streamlit, RAG
6.75 / 7
instructor rating, against 6.00 for ChatGPT-4o