Incluye referencias bibliográficas e índice. CONTENIDO: Introduction -- Why Do Lgbt Research? -- Doing It Right: Ethical Standards in Conducting Research -- Doing Valid Research. Defining the Population and Sampling -- Thinking in Complex Ways: Approaches to Conceptualization, Design, and Measurement -- Maximizing the Validity of the Data: "Insiders" And "Outsiders" -- Using Technology to Enhance the Research Enterprise -- Challenges in Doing Research on Populations at the Margins -- Addressing the Social and Political Context.