What are the advantages and disadvantages of chi-square?

Answer 1

The chi-square test is advantageous because it is simple to use, does not require assumptions about the distribution of the data, and can handle large sample sizes effectively. It is particularly useful for categorical data analysis, helping to determine if there is a significant association between variables. However, its disadvantages include sensitivity to sample size, as large samples can lead to statistically significant results even for trivial associations, and it is not suitable for small sample sizes or when expected frequencies are low. Additionally, chi-square tests do not provide information about the strength or direction of the relationship.