Apply a model of practice to advanced nursing roles. Introduction There is a strong relationship between nursing theory, research, and practice. Nursing theory is foundational to nursing research and practice, and theory is also informed and developed by the results of research and practice. Nurses may select a theory to describe or explain phenomena encountered in practice, and during application in practice the theory is further defined. Nurse researchers test theories’ applicability in practice through clinical research, and nurse scientists develop new theories to explain research findings. Directions In this assessment, you will identify a grand nursing theory used in a research article and a middle-range nursing theory used in a research article. You will examine how each theory was applied within the respective research study and then analyze the utility of grand and middle-range nursing theories to advance the discipline of nursing and its impact upon your advanced nursing practice. Assessment Details Introduce the reader to the content of this paper with an introductory paragraph. Provide general background information about grand, middle and practice theories. Examine a research article in which a Grand Nursing Theory was applied in the research. Describe how the theoretical concepts and propositions were used. Examine a research article in which a Middle Range Nursing theory was applied in the research. Describe if the theory was used as a descriptive, explanatory, predictive, or prescriptive theory in the research. Explain the importance of theory to your advanced nursing role and how research informs and advances the discipline of nursing. Additional information - I am in school for my Psychiatric Mental Health Nurse Practioner. My specificpopulation age is adolsecents. This paper can be 3-4 pages. But at least 3 full pages. (not including my title page and reference page). Please make sure everything is cited accurately.