<div> <div> <div> <p>This dissertation is a three study format. In this dissertation, I used an explanatory sequential mixed method design. Study 1 develops a measurement scale to capture first-generation college students’ agency using the constructs of intentionality, forethought, self-reactiveness, and self-reflectiveness. Study 2 used structural equation modeling to establish a relationship between personal agency, disciplinary role identities, and students’ desire to enact engineering agency. Study 3 was a narrative analysis of how Kitatoi, a Latina, first-generation college student, authored her identity as an engineer. Data for study 1 and 2 came from a survey administered in the Fall of 2017 of 3,711 first-year engineering students across 32 ABET universities. </p> </div> </div> </div>