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Describe the levels of evidence and provide an example of the type of practice change that could result from each.Re:Topic 4 DQ 2According the Grove et. al., levels of evidence are ranked in a continuum according to their strength of the research which is based on factors such as whether they are random clinical trials involved or how much of those research has been replicated with similar results etc (2015). Based on this, the hierarchy for level of research starting from the best to the least strongest is1) systematic research reviews or well designed RCT’s2) meta-analyses of high-quality experimental studies provide the strongest or best research evidence for use by expert clinicians in practice. 3) Meta-analyses and integrative reviews of quasi-experimental, experimental, and outcomes studies also provide very strong research evidence for managing practice problems.