Empirical and Theology are unlikely partners. Empirical refers to that which is verifiable through observation. Theology (at least in the more conservative traditions) is rooted in revelation and textual studies. In Practical Theology, Mark Cartledge demonstrates how these two ideas play well together in a Charismatic milieu.
Practical Theology is written in two parts. In the first three chapters, Cartledge explains his methodology along with a variety of research methods that suit. Particularly enlightening is the way he weaves contemporary philosophy and charismatic scholarship together to define truth.
The chapters in the second half of Practical Theology illustrate the methodology of the first half. Cartledge has used both quantitative and qualitative research methods in his career. He uses the data he gathered throughout his research to demonstrate various ways of doing sociological studies. These chapters are interesting on two levels. They illuminate some key ideas in charismatic theology: prophecy, the role of women, and glossolalia to name a few. At the end of each study Cartledge offers a reflection on the methods used to interpret the data.
Practical Theology should be read by anyone interested in doing sociological research from a charismatic perspective.
Cartledge, Mark J. Practical Theology: Charismatic and Empirical Perspectives. Eugene: Wipf & Stock, 2003.