Action research is a form of applied research that aims to empower people through a process of constructing and using knowledge. It involves practitioners systematically examining their own practices to improve conditions. Participatory action research specifically seeks to empower vulnerable groups through generating knowledge and action. The process involves identifying issues, collecting and interpreting data, acting on evidence, and evaluating results in continuous cycles of self-reflection. Outcome research assesses the end results of healthcare to develop evidence-based practices and improve services.