Conduct a literature search to select a quantitative research study related to the problem identified in Module 1 and conduct an initial critical appraisal. Respond to the overview questions for the critical appraisal of quantitative studies, including:

• Is this quantitative research report a case study, case control study, cohort study, randomized control trial or systematic review?
• Where does the study fall in the hierarchy of evidence in terms of reliability and risk of bias?
• Why was the study done? (Define the problem and purpose.)
• Were the steps of the study clearly identified?
• What was the sample size?
• Are the measurements of major variables reliable and valid? Explain.
• How were the data analyzed?
• Were there any untoward events during the conduct of the study?
• How do the results fit with previous research in the area? (This may be reflected in the literature review.)
• What does this research mean to clinical practice?