Radway, Janice A., Reading the Romance: Women, Patriarchy and Popular Literature, Verso, London, 1987. Radway's research was:

conceived in response to a set of theoretical questions about literary texts. As a consequence, it was designed initially to see whether it was possible to investigate reading empirically so as to make "accurate" statements about the historical and cultural meaning of literary production and consumption. (p5)

Radway's motives and initial hypotheses were therefore different from my own. However, in order to collect data, Radway combined content analysis, observation and interviewing methods, which would all have been appropriate methods for my research.