After deciding that MMR is suitable for the study, the researchers determine their rationale for using a mixed design. Participant enrichment involves blending quantitative and qualitative research to better the sample using approaches that encompass recruiting participants, dealing with activities such as institutional review board interviews assuring that each participant chosen is eligible for involvement. Triangulation seeks convergence, correspondence, and corroboration of results from different methods studying the same phenomenon. Instrument fidelity pertains to evaluating the convenience and/or effectuality of current instruments, by generating new instruments and observing performance of human instruments. Significance enhancement refers to interpretation and utility of findings.