Discussion:
A researcher wants to know if there is a relationship between a person's highest level of education (IV) and differences in life satisfaction (DV). She places her subjects into three samples (less than a high school degree, high school graduate, some college or college degree). She creates a life satisfaction survey using a 4-point ordinal scale.
Would the Kruskal-Wallis be an appropriate statistical procedure to test this RQ? Please explain your answer.