“ Mixed methods studies are those that combine the qualitative and quantitative approaches into the research methodology of a single study or multiphased study ” (Tashakkori & Teddlie, 1998: 17-18). These studies use an interactive (systemic) approach to take advantage of each single method to get more valid answers to the underlying research questions (Maxwell & Loomis, 2003). Advocates of this strategy claim that all methods have limitations and that a combination of quantitative and qualitative methods may help neutralise biases inherent in any single method. Following Lacey (2001), most research is either based on case studies (N < 6) or on generalizable quantitative research supported by a variety of statistical tools, because researchers lack appropriate methods for handling multiple case studies (N=10-50). Mixed methodology may correct this problem. It is particularly suitable when researchers are interested in both, developing a detailed view of meaning of a phenomenon (in-depth qualitative analysis of a limited number of cases), and generalising the findings (quantitative methods).