This is a description of the creation of a research methods tool, the "Transformative, Mixed Methods Checklist for Psychological Research With Mexican Americans." For conducting literature reviews of and planning mixed methods studies with Mexican Americans, it contains evaluative criteria calling for transformative mixed methods, perspectives from Chicana/o (Mestiza/o) psychology, and Baca-Zinn and Dill's Chicana multiracial feminism. It is useful to researchers, journal editors, teachers, and students in psychology and other social sciences. It may serve as a template in the development of comparable checklists for critiquing mixed methods studies with other cultural groups, including African Americans, American Indians, and Asian Americans. (Contains 1 table.)