Combining Qualitative and Quantitative Methods for Evaluation
In evaluation, we often choose between using qualitative (e.g. focus group) and quantitative (e.g. survey) methods. In fact, we should always try and use both approaches. This is what is referred to as triangulation: the combination of several research methods in the study of the same phenomenon. My experience has been that a combination of research methods helps provide more data to work with and ultimately a more accurate evaluation. In a recent project, I was able to use interviews combined with surveys to assess participant reaction to training. I found that the information we could draw from the interviews was complimentary - and of added value - to what we discovered through the surveys.
Even if you are only conducting online surveys, the inclusion of open questions (where respondents put in comments in a free text field) is not quite triangulation but will provide you with insight into the phenomenon being evaluated. In a recent online survey project, we were able to clarify important issues by sorting and classifying the comments made in open questions. This proved invaluable information and gave the evaluation heightened status within the organisation.
Glenn
16 comments March 13, 2006
