Quantitative as well as qualitative research is the foundation
of evidence-based nursing practice. Qualitative research
cannot be disregarded since this research includes human
experiences such as love, happiness, hope, and despair. It
seems logical to utilize middle-range theories for testing
nursing theory in order to differentiate nurse’s contributions
to the health and well-being of human beings from contributions
by other disciplines. Conceptual models may lead to
middles-range theory development, which can generate
empirical research findings to validate nursing actions and
practice. Nursing theory leads to the further development of
nursing knowledge through its research potential. Most theories
described in the literature relate to the metaparadigm of
nursing.