Harnessing GenAI for Higher Education: A Study of a Retrieval Augmented Generation Chatbot's Impact on Human Learning

The advent of generative artificial intelligence (GenAI) and large language models (LLMs) has opened new avenues for enhancing human learning. This study introduces Professor Leodar, a custom-built, Singlish-speaking Retrieval Augmented Generation (RAG) chatbot designed to enhance educational support for undergraduate engineering students. Deployed at Nanyang Technological University, Singapore, Professor Leodar offers a glimpse into the future of AI-assisted learning, offering personalized guidance, 24/7 availability, and contextually relevant information. Through a mixed-methods approach, we uncover the impact of Professor Leodar on student learning, engagement, and exam preparedness, with 97.1% of participants reporting positive experiences. These findings help define possible roles of AI in education and highlight the potential of custom GenAI chatbots. Our combination of chatbot development, in-class deployment and study of learning outcomes offers a benchmark for GenAI educational tools and serves as stepping stone for redefining the interplay between AI and human learning.