Objectives:Compare different types of variables.Describe the influence “levels of evidence” have on practice changes

Question1)Compare independent variables, dependent variables, and extraneous variables. Describe two ways that researchers attempt to control extraneous variables. Support your answer with peer-reviewed articles. With intext-citation and references within 5years

Question 2)Describe the seven “levels of evidence” and provide an example of the type of practice change that could result from each.With intext-citation and references within 5years


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