SESSION 2: ADVANCED STATISTICS

Which of the following is a parametric test used to compare the means of two independent groups?

• Mann-Whitney U test

• Independent samples t-test

• Wilcoxon signed-rank test

• Kruskal-Wallis test

Which statistical test is most appropriate for examining the relationship between two continuous variables?

• Pearson correlation coefficient

• Chi-square test

• ANOVA

• Mann-Whitney U test

Which of the following is a non-parametric alternative to the paired t-test?

• Kruskal-Wallis test

• Wilcoxon signed-rank test

• ANOVA

• Pearson correlation

What is the main difference between parametric and non-parametric tests?

• Parametric tests require categorical data

• Non-parametric tests assume normal distribution

• Parametric tests assume specific distribution, non-parametric do not

• Non-parametric tests are only for large samples

Which test would you use to compare the medians of more than two independent groups?

• ANOVA

• Kruskal-Wallis test

• Paired t-test

• Pearson correlation

Which measure of central tendency is most appropriate for skewed data?

• Mean

• Median

• Mode

• Range

Which of the following tests is used to determine if there is a significant association between two categorical variables?

• Pearson correlation

• Chi-square test

• ANOVA

• Paired t-test

Which test is the non-parametric counterpart of the independent samples t-test?

• Wilcoxon signed-rank test

• Mann-Whitney U test

• Kruskal-Wallis test

• Friedman test

What is the null hypothesis in a test for difference between two means?

• The means are equal

• The means are different

• The variables are correlated

• The medians are equal

Which correlation coefficient is used for ordinal data?

• Pearson’s r

• Spearman’s rho

• ANOVA

• Chi-square