Melnyk & Fineout-Overholt (2015, p. 10), Step 5 = "Evaluate outcomes of the practice decision or change based on evidence".
At this stage of the EBP process, you should be looking at how well you did with each of the previous steps. Murray Turner at the University of Canberra has provided a neat checklist of questions that you can ask yourself. Please note that Steps 2, 4, and 4 have different names but the meaning remains the same.