I've recently written and submitted a literature review that provides a narrative synthesis of 30 studies, half of which are quantitative (using various methods) and half qualitative. I make clear in the introduction that part of the value of the review is in bringing together a wide range of studies that look at the same issue from a range of disciplinary perspectives, using a variety of methods.
On review, one of the reviewers has suggested that I combine the findings in a meta-analysis. Is this even feasible given that the review covers both quantitative and qualitative papers? If so, what methodology would I use? (I'm aware of the Timulak papers on qualitative meta-analysis, but am not aware of anything that enables you to combine quan and qual). The methods of the included studies range from discrete choice analyses to quantitative content analyses, to semi-structured interviews, to ethnography. Surely much of the value of each study would be lost if they were somehow pulled together in a meta-analysis?
Would I be justified in rejecting this suggestion and reiterating that the review provides a narrative synthesis of a range of study types?
Thanks.