322

Match the component on the forest plot to what the component represents.

Measured effect Horizontal line Confidence 95% CI Sample size Diamond or square Line of no effect Vertical line Odds-ratio The initials OR

Which reason is appropriate for using multivariate regression analysis?

More than one independent variable

Which measure of association reports discrete outcome for trials? Select all that apply. One, some, or all responses may be correct.

Relative risk Relative risk reduction Odd ratios

Which statement about confidence interval is correct? Select all that apply. One, some, or all responses may be correct.

The confidence interval helps with generazability The confidence interval can help determine whether study results are statistically significant The confidence interval is based on a random sample of a population

Which definition accurately explains specificity concerning the appraisal of a diagnosis?

The proportion of those without disease who test negative.

Which outcome is indicated by a confidence interval with a null value of one?

The results are not clinically significant

Which clinical category is appraised when applying a specific intervention to a study group as compared to no intervention in a control group?

Therapy

A nurse is conducting a critical appraisal of a research study using a critical appraisal tool. Which response would the nurse give to each of the tool's questions indicating the research has strong applicability to clinical practice?

Yes

Which CI percentage indicates a population mean lies between an upper and lower interval? % ___

95

Match the type of measurement's abbreviation to its correct full name.

95% CI Confidence interval OR Odds ratio p-value Probability RR Relative risk

Which depiction on the blobbogram would indicate a study's results did not achieve significance?

A horizontal line touches the vertical line

Which action would the nurse take when investigating the effects of interventions for prevention, treatment, and rehabilitation in a health care setting?

Conduct a Cochrane review

Which type of variable is measuring the range of blood pressure in response to a particular medication?

Continous

Which evidence-based practice identifier defines clinical significance?

Established by experts in the field

Which definition accurately describes the positive predictive value (PPV)?

It expresses the proportion of those with positive test results who truly have disease.

Which aim is accomplished when using prognostic information to drive evidence-based practice?

It focuses on reducing factors that lead to disease.

A study related to childhood obesity indicates a number needed to treat (NNT) of 400. Which assumption would the researcher make based on this outcome?

It may not be worth pursuing the intervention due to the expense resources needed

Which measure takes a pretest probability and gives a new probability when the test is applied?

Likelihood ratio