Write about the questions noted below; pose your own analysis of the topic, or share stories and experiences related to the week’s topic. Rather than simply answering the questions, add your own ideas, introduce new referenced literature, and build on issues raised within the discussion. 1. Describe what criteria are used to grade the different levels of evidence? 2. How does the peer-reviewed process enhance the credibility of the evidence? 3. Based on the research hierarchies, what types of research designs are best for which PICO/research questions, provide examples? 4. If you reviewed the assigned article, Evidence, hierarchies, and typologies: Horses for courses, how do you think evidence hierarchies are applicable to your area of practice?