Multimethodology or multimethod research includes the use of more than one method of data collection or research in a research study or set of related studies and mixed methods research is more specific in that it includes the mixing of qualitative and quantitative data, methods, methodologies, and/or paradigms in a research study or set of related studies. (https://en.wikipedia.org/wiki/Multimethodology - Zugriff am 14.9.2015)