represent a less formal attempt to explain phenomena than theories deal with abstractions, assembled in a coherent scheme examples include pender's health promotion model and theory of planned behavior
represent a less formal attempt to explain phenomena than theories deal with abstractions, assembled in a coherent scheme examples include pender's health promotion model and theory of planned behavior
-consist of interrelated concepts -represent a less formal attempt to explain phenomena than theories  -can generate hypotheses   based on middle-range theories