RESUMO
AIM: To generate changes in nursing practice introducing an evidence-based clinical practice (EBCP) model through a participatory process. To evaluate the effectiveness of the changes in terms of nurse-sensitive outcome (NSO). BACKGROUND: For international nursing science, it is necessary to explore the reasons for supporting EBCP and evaluate the real repercussions and effectiveness. METHODS: A mixed methods study with a sequential transformative design will be conducted in the bone marrow transplant unit of a tertiary-level Spanish hospital, in two time periods >12 months (date of approval of the protocol: 2006). To evaluate the effectiveness of the intervention, we will use a prospective quasi-experimental design with two non-equivalent and non-concurrent groups. NSO and patient health data will be collected: (a) impact of psycho-social adjustment; (b) patient satisfaction; (c) symptom control; (d) adverse effects. All patients admitted during the period of time will be included, and all staff working on the unit during a participatory action research (PAR). The PAR design will be adopted from a constructivist paradigm perspective, following Checkland's "Soft Systems" theoretical model. Qualitative techniques will be used: 2-hour group meetings with nursing professionals, to be recorded and transcribed. Field diaries (participants and researchers) will be drawn up and data analysis will be carried out by content analysis. DISCUSSION: PAR is a rigorous research method for introducing changes into practice to improve NSO.