Mixed methods research has not fully explored the relationships between career adaptability and related constructs. As career adaptability is increasingly found to be a relevant and impactful construct to understand career development (Savickas, 2013), it is important to examine it through both qualitative and quantitative lens to obtain a holistic and contextual understanding of related constructs and the mechanisms of change. The aim of this mixed methods study was to explore the relationship between career adaptability and transferable skills for college students engaged in a career intervention for student workers. Quantitative results found that career adaptability did not significantly raise after engaging in the intervention. However, career adaptability prior to the intervention and teamwork significantly predicted the variance of the change in career adaptability after the intervention. Additionally, tenacious goal pursuit partially mediated the relationship between transferable skill acquisition and career adaptability change. Qualitative results identified six themes that emerged from the data and analysis process including (a) connecting current work skills to future work skills, (b) intentionality of developing career skills, (c), peer/supervisor/customer learning, (d) importance of experiential opportunities, (e) positive impact of social support, and (f) pursuit of future goals tied to feelings of preparedness and confidence. In integrating these results, the data has implications regarding the relationship between career adaptability and adaptivity, as well as providing insights into the salience of this career intervention with a disproportionally underserved population. Finally, implications regarding future research and practical applications are discussed. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]