Integrating qualitative and quantitative research methods

There are a growing number of authors arguing the case for integrating qualitative and quantitative research methods within research projects. A study was carried out to identify the amount of published work integrating qualitative and quantitative research methods and to assess the quality of the outcomes of studies purporting to use both methods. Electronic searches of the health literature and critical appraisal of a random sample of papers retrieved was undertaken as well as a hand search of five journals. Over one-quarter (130, or 27%) of the papers from the electronic searches were theoretical discussions about the merits of mixing research methods, 22% (110) were papers purporting to have used mixed methodologies. Critical appraisal of the sample papers showed the qualitative and quantitative elements varied. Where the results of the different parts of the study were integrated, the outcomes from the research were more convincing than they might otherwise have been. Other papers had little discussion about the balance or integration of the different types of results. Hand searching revealed very few mixed method papers. Further work is required to refine and develop ways to mix methods to generate the evidence required to support practice.