EBP II review for quiz #1

Question 1

Define a systematic review.

Answer 1

A systematic review is a literature review focused on a research question that tries to identify, appraise, select and synthesize all high quality research evidence relevant to that question.

Question 2

Define a systematic review with meta-analysis.

Answer 2

Often, systematic reviews include a meta-analysis component which involves using statistical techniques to synthesize the data from several studies into a single quantitative estimate or summary effect size. Effect sizes measure the strength of the relationship between two variables, thereby providing information about the magnitude of the intervention effect.

Question 3

How is the effect size calculated?

Answer 3

The type of effect size calculated generally depends on the type of outcome and intervention being examined as well as the data available from the published trials; however, some common examples include odds ratios (OR), weighted/standardized mean differences (WMD, SMD), and relative risk or risk ratios (RR).

Question 4

What is a confidence interval?

Answer 4

CI is a statistic to hep us understand the accuracy of the mean calculated in a study.

Question 5

What does a 95% CI mean?

Answer 5

It means that the authors are 95% certain that if the true population mean is not what they found in the study, it will fall between/within values of standard deviation.

Question 6

What is an Odds ratio?

Answer 6

The odds of a condition happening in one group compared to the odds of the condition happening in a different group.

Question 7

What does the Odds ratio measure?

Answer 7

The Odds ratio represents the odds that an outcome will occur given a particular exposure, compared to the odds of the outcome occurring in the absence of that exposure.

Question 8

What does the Odds ration of .12 mean?

Answer 8

1.2 x more likely for something to happen

Question 9

What is relative risk?

Answer 9

Is a risk of an event of developing a disease relative to exposure.

Question 10

What is a clinical practice guideline?

Answer 10

A systematically developed statements that link research and practice, and serve as guidelines for practitioners

Question 11

What is the goal of the results of a systematic review?

Answer 11

Goal is to draw a conclusion based on the cumulative weight of the evidence in the literature about the element of interest