MN 502 Unit 6 Assignments: What Is A Theory?NameCourseTutor’s NameDateWhat Is A Theory?Nursing practice is informed by structured ideas and knowledge developed through systematic inquiry. Theory helps predict, generalize, organize facts and generate testable propositions. The hierarchy of nursing theory consists of nursing metaparadigm, grand theories, mid-range theories and nursing practice in that order, where nursing metaparadigm are the most abstract and nursing practice is most specific. This paper will examine the use of grand theory and mid-range theory in research.Imogene King’s interacting systems framework and theory of attainment goal attainment is an example of a grand theory in nursing. The theory uses the concept of personal, interpersonal, and social as the three interacting systems that helps nurses view patients as a system consisting of the patient as an individual, their family, and their social environment. The concept of a patient as an individual involves sensual perception of the individual, self-thoughts that inform the awareness of the individual, awareness of behavioral and biological factor that influence the individual. The concept of the individual helps nurses understand both themselves and the patient as an