Researchers have called for increasing sophistication in the assessment of women's feminist identity development (Enns & Hackett, 1990; Hackett, Enns, & Zetzer, 1992) to understand important psychological processes. This series of studies examined recent efforts to operationalize Downing and Roush's (1985) model of feminist identity development. Specifically, the psychometric properties of two existing measures—the Feminist Identity Development Scale (Bargad & Hyde, 1991) and the Feminist Identity Scale (Rickard, 1987)—were examined in two studies with separate samples of women (total N= 486). Results of Study 1 indicated the strengths and significant limitations associated with each scale (e.g., low internal consistency for some subscales, item-subscale inconsistency). A composite measure (derived from these scales) with better overall psychometric properties is described. In Study 2, we found good support for the composite instrument's internal consistency, as well as convergent, discriminant, and factorial validity in a sample that included a wide age range and nonstudent community residents.