The qualitative approach to research design leads to studies that are
quite different from those designed using the more traditional approach.
The traditional approach, often referred to as quantitative research, leads
to hypothesis-testing research, whereas the qualitative approach leads to
hypothesis-generating research. This chapter will describe the difference
between the two approaches, and spell out the conditions under which
hypothesis-generating research is an appropriate research strategy. We will
illustrate the discussion by describing our own research program, the
Yeshiva University Fatherhood Project.