This research investigates the potential of incorporating socialization components (“encouragement by others” and “observational learning”) in the delivery of mobile public library-led Android tablet training to improve the learning outcomes of marginalized older adults (aged 65+ who live in social housing). Utilizing a conceptual framework based on Social Cognitive Theory and a theoretical model of community-led digital literacy training, the study explores how learner attributes, learner behaviors, and the learning environment collectively impact psychological, behavioral, and benefit learning outcomes. The research involves: interviews with older adult learners, administrators, and instructors; observations of library-led training conducted on-site at the older adults’ place of residence; and analysis of biometric data (via eye-tracking, skin conductance) and audio/video recordings of older adult learners collected during additional tablet training sessions in an on-site state-of-the-art mobile user experience lab. This mobile lab facilitates accessibility of a state-of-the-art computing research infrastructure to this marginalized population.