Fàbregues, S., Escalante-Barrios, E. L., Molina Azorín, J., Hong, Q. N., & Verd, J. M. (2021). Taking a critical stance towards mixed methods research: A cross-disciplinary qualitative secondary analysis of researchers’ views. PLoS ONE, 16(7), e0252014. https://doi.org/10.1371/journal.pone.0252014

Fàbregues et al. (2021) discuss 11 criticisms of mixed methods research made by researchers from Sociology, Psychology, Nursing and Education. Amongst other things, they recommend reading original sources to properly understand philosophical perspectives taken in mixed methods research.

Sandelowski, M. (2014). Unmixing mixed methods research. Research in Nursing & Health, 37(1), 3–8. https://doi.org/10.1002/nur.21570

Sandelowski (2014) sets out to clarify ‘mixed up’ ideas about mixed methods research by unpacking, especially, the qualitative–quantitative binary. She concludes by reminding researchers that mixing methods is a natural way to do research, with issues that are common to all types of research.