"Illuminative evaluation," as defined by Parlett and Hamilton, "is not a standard methodological package but a general strategy. It aims to be both adaptable and eclectic. The choice of research tactics follows not from research doctrine, but from decisions in each case as to the best available techniques; the problem defines the methods, not vice-versa." An illuminative evaluation technique was used to assess the strengths and weaknesses, and to assist the planners in their understanding of the dynamics and the shape of the First National Summer Institute in Women's Studies. Quantifiable information was obtained through a needs' assessment form, administered to participants (n=48) and staff (n=13), through observations of the formal and informal sessions and staff meetings, and through open-ended questions on an evaluation form. The findings indicate that illuminative evaluation showed promise as one evaluative methodology compatible with feminist activity and theoretical concerns. This model enabled a report to be developed which would serve to offer both qualitative and quantitative data useful to the designing of the Institute, provide information for continued funding of the project, and include documentation of the first year of the Institute. (Author/PN)