LEVELS OF EVIDENCE 2Levels of EvidenceLevels of evidence entail problem-solving process applied in clinical practice. It is a kindof study carried out with well-designed procedures including both patient values and preferencesincorporated with good evidence to help the physician in decision making concerning thepatient's care (Burns, Rohrich, & Chung, 2011). Level of evidence remains to be a contentiousissue as there is no standard formula regarding decision making in the nursing sector, evidence-based practice is of much importance to the nurses given that it forms the basis of their decisions.The first level involves a systematic review of the relevant Random Controlled Trial aswell as the clinical evidence-based practices, and their systematic review of strengths andqualities of the evidence.The second level entails evidence obtained from a well-designed Random ControlledTrial. This may include for instance a large multi-site Random Controlled Trial. The third level
