Systemic review | Nursing homework help
In general, there are five levels of evidence ranging from 1 (for case studies) to 5 (for systematic reviews and meta-analyses). For example, if a clinical trial has been conducted with positive outcomes then it would likely receive a level 3 ranking — meaning that sufficient data exists to suggest that changes could be beneficial. On the other hand, if a review only provides inconclusive findings then it may be rated at either level 2 or 1 depending on how much information was actually evaluated in order to draw these conclusions.
Overall, by properly identifying which type of evidence best supports any proposed modifications practitioners can make more informed decisions about their courses of action. This is especially important when considering new treatments for vulnerable populations who are relying on healthcare professionals for guidance so they can receive optimal care without any unnecessary risks associated with experimental approaches.