Data collection and analysis procedures adapted from the fields of anthropology, developmental psychology, and linguistics have been instrumental in advancing writing process research. Two such models of study are the embedded case study and the researcher as participant observer. The embedded case study research design embeds small group information within information from a large group. Data from informants from each phase of the study provide triangulation information for each of the other phases, thereby providing one measure of validity. The types of findings generated by this particular design are not restricted by the particular phases of the design. That is, the working hypotheses can be drawn from any one phase or more than one of the phases of the study. In the other research model, the researcher becomes involved in classroom planning, instruction, and evaluation to provide data to generate new hypotheses or to corroborate or contradict existing research while describing the learning process. The participant observer model is flexible enough to join classroom teachers, researchers, and learners in various inquiry roles and situations. The involvement of differing perspectives cannot help but make unique contributions to the dynamic and growing knowledge base associated with learning. (HOD)