CHOOSING STATISTICS
What is a Statistical Menu?Frequency Distribution Pearson r Independent Samples t-Test
Percentile Rank Spearman rho Dependent Samples t-Test
Mean Point-biserial r Wilcoxon Rank-Sum Test
Median Phi Coefficient Wilcoxon T Test
Mode Regression One-Way BS ANOVA
Standard Deviation z-Test Kruskal-Wallis ANOVA
z-Score Single-Sample t-Test One-Way RM ANOVA
Simple Probability Confidence Interval, z-scores Friedman ANOVA
Binomial Probability Confidence Interval, t-scores Two-Way BS ANOVA
Confidence Interval - Proportion Two-Way Mixed ANOVA
Chi-Square Goodness of Fit Chi-Square Test of Independence
How Do We Know What Statistic to Do?
• Be aware of the options: statistical menu.• Know how to find out about other options.• Organize your knowledge.• Ask a series of questions.• Look for examples in the literature.• Practice.
How Do We Know What Statistic to Do?
• What is the purpose of your study?• What type of design do you have?• What type of data do you have?
Menu Organized by PurposeDescribe Estimate Relate Compare
Frequency Distribution Confidence Interval, z-scores
Pearson r z-Test
Percentile Rank Confidence Interval, t-scores
Spearman rho Single-Sample t-Test
Mean Confidence Interval - Proportion
Point-biserial r Chi-Square Goodness of Fit
Median Phi Coefficient Independent Samples t-Test
Mode Regression Dependent Samples t-Test
Standard Deviation Chi-Square Test of Independence
Wilcoxon Rank-Sum Test
z-Score Wilcoxon T Test
Simple Probability One-Way BS ANOVA
Binomial Probability Kruskal-Wallis ANOVA
One-Way RM ANOVA
Friedman ANOVA
Two-Way BS ANOVA
Two-Way Mixed ANOVA
Menu Organized by DesignRelational One Group Independent Groups Related Groups
Pearson r Confidence Interval, z-scores
Chi-Square Goodness of Fit
Dependent Samples t-Test
Spearman rho Confidence Interval, t-scores
Independent Samples t-Test
Wilcoxon T Test
Point-biserial r Confidence Interval - Proportion
Wilcoxon Rank-Sum Test
One-Way RM ANOVA
Phi Coefficient z-Test One-Way BS ANOVA Friedman ANOVA
Regression Single-Sample t-Test Kruskal-Wallis ANOVA
Chi-Square Test of Independence
Menu Organized by Design and Data Type
Independent Groups Related Groups
Nominal Chi-Square Goodness of Fit
Ordinal Wilcoxon Rank-Sum TestKruskal-Wallis ANOVA
Wilcoxon T TestFriedman ANOVA
Interval/Ratio Independent Samples t-TestOne-Way BS ANOVA
Dependent Samples t-TestOne-Way RM ANOVA