A hospital administrator is reviewing Press-Ganey patient satisfaction scores to determine if there is a difference in performance between the clinical departments. The administrator also wants to account for whether patients of different sexes or races were treated differently. What statistical analysis should be used?

Break the situation down into the components for choosing a statistical test.

• dependent variable?
• dependent variable?
• independent variable(s)?
• type(s) of independent variable(s)?
• What are other things that could affect the statistical analysis?
• Which of the following statistical analysis would you use?

One-sample t-test

Paired t-test

Two-sample t-test

ANOVA

Chi-square test

Simple linear regression

General linear model

Logistic regression

Wilcoxon rank-sum test

Kruskal-Wallis test

Spearman correlation

Fisher's exact test

Log-rank test

Cox proportional hazards model