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Preparing for the United States Medical Licensing Examination (USMLE) Step 1 is one of the most challenging stages in a medical student’s…

Background: There is evidence of rapid adoption of large language models (LLMs) in undergraduate medical education, with medical students using them to support their learning. This raises concerns about the accuracy of LLM-generated information that students are learning from. Retrieval-augmented generation (RAG), which grounds an LLM in curated materials, may be a strategy to improve the accuracy of this information. Objective: This study explored medical students’ perceptions after using an online tool, NotebookLM, that uses RAG. Methods: A cohort of 284 second-year medical students at Bristol Medical School were encouraged to use NotebookLM over a period of 4 months (March 2025 to June 2025) to help them learn course content. Following this, volunteers were recruited to share their perspectives through interviews and a survey that was open for 4 months (June 2025 to September 2025). A total of 9 individuals participated: 2 through interviews and 7 through the survey. Qualitative data were analyzed using reflexive thematic analysis and supplemented by Likert scale data. Results: NotebookLM was perceived as more reliable than standard LLM responses by interview participants, mainly due to the transparency of and control over information sources. Reliability ratings from survey participants were more mixed, but none rated unreliable. Students described it as an accessible, on-demand learning resource, which they perceived as improving efficiency and supporting self-directed study. They reported continued use of strategies to cross-check generated information. Participants demonstrated some awareness of ethical concerns, but it was unclear whether this altered their practice. Conclusions: In this small, exploratory study, students described NotebookLM as improving trust in LLM outputs while maintaining their flexibility. The findings suggest that RAG may be a strategy to support students who use LLMs. However, further research is needed to formally evaluate RAG vs standard LLMs, including the impact of RAG on accuracy, curricular alignment, and the ability of students to meet learning outcomes.

Discover science and medical products from DR Joe Science & Tech. Explore our range and shop through Amazon UK.

Discover science and medical products from DR Joe Science & Tech. Explore our range and shop through Amazon UK.