Gold standard for nclex Exam 12 2024

A sampling distribution of the mean: a. is created with means from 5,000 samples b. is based on data values from a population c. is a theoretical, not an actual, distribution d. is based on data values from a study sample - c. is a theoretical, not an actual, distribution A researcher wants to rest the differences in average length of stay in hospital for premature infants randomly assigned to four different methods of stimulation. What statistical test should the researcher use? a. ANOVA b. independent groups t-test c. Paired t-test d. repeated measures ANOVA - a. ANOVA Which test is not used to test differences between groups of people? a. t-test b. Pearson's r c. ANOVA d. chi-squared test - b. Pearson's r The preferred statistical index for estimating a continuous measure's test-retest reliability is: a. the intraclass correlation coefficient (ICC) b. Cohen's kappa c. pearson's r d. coefficient alpha - a. the intraclass correlation coefficient (ICC) Which index of central tendency is often used when variables are severely skewed? a. median b. mode c. range d. mean - a. median the relationship between nurses' gender and their specialty area could be described by using a: a. frequency distribution b. correlation matrix c. Pearson's r d. crosstabs table - d. crosstabs table What do correlation coefficients describe? a. direction and strength of relationships b. variability of a distribution c. central tendency of a distribution d. cross-tabulations - a. direction and strength of relationships Which is an effect size index? a. d