abstract: ABSTRACT This dissertation examines the role of tribal sovereignty and self-determination in research for Diné participants and elders from 1956-1986. The qualitative historical research study explored the following questions: How has past research been conducted on the Navajo Nation? What is the role of sovereignty and self-determination in research and research methodology for Diné peoples? And, how might Diné philosophy inform a research methodology that aligns with cultural protocols and practices? Six elders who participated in research from 1956-1986 participated in in-depth interviews about their experiences. Using Sa’ąh Naaghái Bik’eh Hozhǫ̨̨́ǫ́n and related Diné philosophy models, findings of this study inform an Indigenous elder knowledge protection model (i.e. Nihookáá’ Diné Nidoolkah Bindii’ą’) to support existing Diné tribal IRB protocols and policies and provides additional insight for tribal cultural protection organizations. Lastly, the researcher presents a Diné intersectional methodology for future research. / Dissertation/Thesis / Doctoral Dissertation Social Justice and Human Rights 2020