NSG 455 Evidence Based Practice & Statistics Comprehensive Final Review Q & A 2026 (Complete And Verified Study material) (19pages) LEARNEXAMS

1. Multiple Choice: Which statistical test is most appropriate for comparing the means of two independent groups? A. Chi-square test B. T-test C. ANOVA D. Regression analysis Correct Answer: B. T-test Rationale: The T-test is used to compare the means of two independent groups when the dependent variable is continuous. 2. True/False: In evidence-based practice, a systematic review is considered a higher level of evidence than a single randomized controlled trial. Answer: True Rationale: Systematic reviews analyze a collection of studies, which provides a more comprehensive overview of the available evidence compared to a single study. 3. Fill-in-the-Blank: The _______ is a measure of variability that describes an average deviation from the mean. Correct Answer: Standard deviation Rationale: The standard deviation is a statistical measure that shows how much variation or dispersion exists from the average