Background: Service-learning is a widely adopted approach in higher education institutions globally, integrating civic engagement experiences into academic curricula while being responsive to the development of local communities. Purpose: This study aimed to assess the impact on students in participating in voluntary semester-long service-learning labs and courses in comparison to traditional labs and courses. Methodology/Approach: A quantitative online survey was administered to 110 students at the beginning and end of the lectures, investigating four psychosocial variables of citizenship: social justice attitude, cognitive empowerment, sense of community responsibility, and civic engagement. The post-survey also collected data on the participants' quality of participation experiences. Findings/Conclusions: Analyses performed on data revealed no statistically significant group differences over time in all examined variables, except for the quality of participation experiences, where service-learning students scored significantly higher than other students. Factors potentially influencing these results include the students' perception of their competence, the duration of the service-learning program, and relying on self-reported measures. Implications: This study contributes to the advancement of experiential learning knowledge emphasizing the significance of methodological rigor, underpinning a narrative that leverages failure to foster understanding. Future research could further explore the role of quality of participation experiences in service-learning.