A mixed method approach to clarify the construct validity of interprofessional collaboration: an empirical research illustration.

The rapid development of empirical studies in the field of interprofessional collaboration (IPC) calls for a wide array of scientific approaches ranging from recruitment and motivation to measurement and design questions. Regardless of whether researchers choose qualitative or quantitative approaches, they must substantiate their findings. We argue that more attention should be given to reliability and validity issues to improve our understanding of IPC as a phenomenon and practice. A mixed methods approach is presented as a relevant design format for the study of IPC. This paper aims to argue that a combination of methodologies may be a feasible way to enhance our understanding of IPC, with a special focus on reliability and validity issues; illustrate the application of different methodologies in an IPC research project; and emphasize the distinction between validity and validation to mitigate possible obstacles in integrating qualitative and quantitative research in the study of IPC.