It is often said that research methods are a matter of rational choice: it is the research question, or problem, which ought to dictate the method to be used. This may be true to some extent, but there are other more powerful reasons why social scientists choose the research methods they do. Underlying philosophies of social science and long-held and much cherished tenets about epistemology are prime among these. Moreover, such an interplay between epistemological position and methodological decision is enormously affected by social context. We pay attention to what other social scientists are doing, to fashions in both methodology and topic - the things it is considered proper for social scientists to study; we are affected by research funding and publishing opportunities, by the material resources available to support our work, by intraprofessional rivalries and difference, and by politics - both in its commonly understood sense and as applied to power relations between academics and those who take part in research. Apart from what we do, there is the whole issue of how others construct our work. And this is only some of what goes on. In short, it is a very complicated business.