This type of theory is more concrete in nature. They are developed with the aim of explaining, predicting and answering questions relating to nursing. The concepts covered often spill over from one area of ​​nursing to another. (Meleis, 2012, chap. 3) I would argue that mid-range theories of nursing are most applicable to the role of the clinical nurse in today's healthcare system. The driving force behind health care reform and best practices in care is evidence-based research. Mid-range theories, by design, are less abstract than grand theories and are more easily tested and observed in clinical settings. These types of theories are also easier to implement in practice. This particular type of nursing theory can be easily applicable to many facets and specialties of the nursing field.