This study aims to develop an interpersonal communication training module to enhance students' self-confidence. Barriers in interpersonal communication can affect students' self-confidence, as reflected in their tendency to avoid social interactions, lack of social engagement, and low participation in learning activities. This research employs the Research and Development (R&D) method using the ADDIE development model, which consists of Analysis, Design, Development, Implementation, and Evaluation stages. The subjects in the limited trial consisted of 15 tenth-grade students at SMKN 1 Malingping. The results of the media feasibility assessment based on expert validation showed that the media expert gave a score of 100%, the material expert 100%, the language expert 97.5%, and the practitioner 100%. Overall, the average percentage reached 99.4%, which falls into the "Very Feasible" category. Students’ responses as users also indicated a high level of acceptance of both the content and presentation of the interpersonal communication training module. Therefore, this module is expected to serve as an alternative learning medium that supports the development of students' self-confidence.
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