Research is an essential part of nursing practice which collects and analyzes information to produce conclusions for future application. According to Grove, Gray, and Faan, “nursing research is a scientific process that validates and refines existing knowledge and generates new knowledge that directly and indirectly influences nursing practice”. Every research should follow specific criteria to be reliable; for example, nursing studies always have a framework and particular designs. The four study designs (correlational, descriptive, quasi-experimental, and experimental) are used to research essential phenomena. I suppose that any credible study should be based on proved theory, described with a framework, and follow one of the designs. The conclusions from studies improve nursing practice, refine applied methods, and develop the delivery system by adding empirical knowledge and experience.
Reference
Grove, S. K., Gray, J. R., & Faan, P. R. (2019). Understanding nursing research: Building an evidence-based practice. Amsterdam, Netherlands: Elsevier.