The following are the some basic features of the mixed methods research:

The analysis of both qualitative and quantitative data.
The collection of both open and closed-ended data (qualitative and quantitative data) in response to research question.
Persuasive and rigorous procedures for the qualitative and quantitative methods.
The integration of these two data sources (by merging, connecting, embedding).
The use of specific mixed methods design that involves a concurrent or sequential integration.
An approach to research that has a philosophical foundation.