Disparities in postschool outcomes between student groups associated with intersecting historical marginalizations such as ableism, racism, classism, and linguicism remain stark. Critical research methods have contributed to the development of equity-focused research. In this conceptual paper, we examine intersectional research, one critical methodology focused on equity. In a recent study of postsecondary transitions of multilingual students with disabilities in the northeastern United States, we found this methodology to be productive in examining marginalization and equitable transition outcomes. First, we define intersectionality and provide a rationale for its use. We then share foundational claims of intersectional research, and we provide illustrative examples from our study. The discussion identifies implementation strategies. Last, we share implications such as tensions, benefits, and insights from our application and the extant literature.