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... Nursing Theory Nursing Theory Nursing theories comprise concepts, relationships, definitions, and assumptions or propositions obtained from nursing models, and outline a purposive methodical view of observable facts by designing precise interrelationships among concepts for reasons of illustrating, explaining, foretelling and prescribing (Parker, 2005). There are various classifications of nursing theories which include meta theory, grand, middle range and practice theories. These theories are descriptive, explanatory, predictive or prescriptive. Metatheory brings about the identification of specific phenomena through abstract concepts. Grand theory gives provision of a theoretical construction...