This study aims to explore whether university co-curricular courses with embedded service-learning have an effect on students' interpersonal capability development, and how course quality relates to student outcomes. It used a mixed-methods approach comprising surveys and interviews. The survey data show that students' self-perceived relationship management skills improved in all cocurricular courses. Students' perception of their own awareness of others' experiences and feelings, however, was found to have worsened. Course quality was found to be a predictor of both aspects of interpersonal development, suggesting that closer alignment of courses with the recommended quality standards will make them more effective in promoting students' interpersonal capabilities. The qualitative data echo the quantitative findings and reveal that course characteristics, such as meaningful experience, diversity, student voice, and group work, are significant for developing students' interpersonal capabilities.本文旨在探討大學課程中設有服務學習的聯課課程能否促進學生的人際溝通能力，以及課程質素如何影響學習成果。本研究採用混合研究方法，即問卷調查和訪談。調研結果顯示學生自感在人際關係管理能力有所提升，但在察覺他人經驗和感受的能力下降。研究並顯示課程質素能夠預測以上兩項能力的發展，即課程愈能緊扣其質素標準要求，則效能愈高。質性研究也有相同的結果，展示課程的特徵如：有意義的經驗、多元化的體驗、學生的聲音、團隊工作，都是發展有關能力的要素。 Copyright © 2018 HKFYG.