सिद्धांतों, विश्वासों या विचारों के वे कथन जिन्हें किसी शोध अध्ययन में औपचारिक सत्यापन या प्रमाण के बिना सत्य मान लिया जाता है, कहलाते हैं:

In the context of utilizing research in nursing practice, what is the primary role of clinical guidelines derived from systematic reviews?

A nurse researcher is planning to study the effects of a new intervention. She wants her results to be applicable to a wide population. Which characteristic should guide her research design?