The focus of community-based projects is participation. This idea has both an epistemological and a logistical dimension. Local knowledge is supposed to guide these investigations, while community members should participate in every phase of a project. In fact, some critics argue that they should control these undertakings. In this way, the "authorial intent" of these persons can be given serious attention, thereby improving social services. These requirements, in many ways, take the usual debate between quantitative and qualitative methodologies in a new direction.