Little empirical research exists on major changes in the strategies and tactics of social movements, but some researchers argue that organizational readiness and political opportunities produce such changes. This article examines the circumstances that led some state woman suffrage movements to use a bold new tactic, the suffrage parade, beginning in the early twentieth century. An event-history analysis reveals that organizational readiness and political opportunities had little to do with change in the suffragists' strategic approach. Rather, the change occurred when movements consisted of a diverse assortment of organizations, when movement organizations were less centrally structured, when conflict existed among movement members, when movements engaged in fundraising, and when the suffragists had recently experienced significant political defeat. The model of tactical change presented here better explains the impetuses for such a shift than do earlier explanations.
