# Learning objectives

Learning objectives aid revision by reminding you of the concepts you will have mastered in each chapter.

In this chapter you will discover:

• How to test the relationship between two categorical variables using:
• he chi-square test

• Fisher’s exact test

• The likelihood ratio test

• The chi-square distribution

• Standardized residuals

• Bayes factors

• Correlation analysis

• Spearman’s rho and Kendall’s tau

• Covariance

• Bayesian approaches