Theory Analysis Scope The Theory of Comfort by Katherine Kolcaba is middle range theory. Middle range theories contain a limited amount of concepts and also have a more limited range. However, Kolcaba's Theory of Comfort is categorised as a high middle range theory so that it is a more general and abstract theory. Making it tightly related to a "Grande Theory" which is very abstract and general and can be employed to a number of experiences and replies (McEwen & Wills, 2011). This is very true for The Theory of Comfort as much articles have been written adapting the idea to multiple scopes of medical. Middle range theories include something specific related to nursing practice like a situation or condition of an individual or patient inhabitants. Middle range ideas also look at the populations years and location when focusing on the development of a theory.