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Describe the levels of evidence and provide an example of the type of practice change that could result from each. The levels of evidence from strongest to weakest are as follows: • Systemic review of experimental studies (well-designed randomized cont

Describe the levels of evidence and provide an example of the type of practice change that could result from each.

 

 

 

The levels of evidence from strongest to weakest are as follows:

·       Systemic review of experimental studies (well-designed randomized controlled trials [RCTs])

·       Meta-analyses of experimental (RCT) & quasi-experimental studies

·       Integrative reviews of experimental (RTC) & quasi-experimental studies

·       Single experimental study (RCT)

·       Single quasi-experimental study

·       Meta-analysis of correlational studies

·       Integrative reviews of correlational & descriptive studies

·       Qualitative research meta-synthesis & meta-summaries

·       Single correlational study

·       Single qualitative or descriptive study

·       Opinions of respected authorities based upon clinical evidence, reports of expert committees (Grove, Gray, & Burns, 2015, p. 24)

Systemic review is reviewed by experts in the field of research who meticulously evaluate the content. Meta-analysis uses quantitative approaches to review the research from multiple studies. Integrate review is a compiling of research that has been revised and abridged. Single experimental study is a true experimental study where researchers are typically unaware as to which participants are receiving the intervention. Meta-analysis compiles qualitative data while searching for common themes among comparable research studies (Peterson et al., 2014, p. 62-63)

 

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