ObjectiveThis study explored how native and nonnative study partners impact medical students' confidence, learning strategies, and perceptions of learning experiences in second language (L2) medical Dutch learning using Kolb's experiential learning framework.MethodsTwelve third-year international bachelor medical students participated in a mixed-methods pre-post quasi-experimental design. Four students were paired with highly proficient native Dutch partners in a mixed group, and eight nonnative students formed pairs in a homogeneous group. The need satisfaction competence scale was used for pre- and post-tests, and individual interviews were analyzed for content and themes. Code co-occurrence and network analyses were carried out to identify the relationships between themes in the two groups.ResultsCommon themes in both groups included a positive atmosphere, collaboration, and confidence. The mixed group prioritized language learning and motivation, while the homogeneous group emphasized interpersonal relationships and feedback-seeking behaviors. Nonnative students in homogeneous groups gained confidence, while confidence of those in mixed groups decreased, possibly due to comparing themselves with native partners. Homogeneous groups have communication focused collaborative strategies, while the mixed group emphasized personal growth with fewer drawbacks.ConclusionsOur findings suggest that initiating the course with homogeneous nonnative student groups fosters collaboration and builds confidence among participants. However, to maintain motivation and further enhance language proficiency, it is advisable to introduce native Dutch partners at a later stage of the course. This approach allows students to benefit from both the positive collaborative atmosphere and interpersonal growth fostered in homogeneous groups, as well as the language learning and motivation gains associated with mixed-group experiences. Overall, our study highlights the importance of considering the stage of language learning and student ...