In a "single approach design" ("SAD")(also called a "monomethod design") only one analytic interest is pursued. In a "mixed or multiple approach design (MAD)" two or more analytic interests are pursued. Note: a multiple approach design may include entirely "quantitative" approaches such as combining a survey and an experiment; or entirely "qualitative" approaches such as combining an ethnographic and a phenomenological inquiry, and a mixed approach design includes a mixture of the above ("e.g.", a mixture of quantitative and qualitative data, methods, methodologies, and/or paradigms).