Worksheet 7 has been pretty repetitive but it reinforces the concept of Chi-square and other measures of association, which have been concepts I’ve struggled with in Statistics. Starting this chapter I was a little hesitant because of all the different measures, but after putting crosstabs to practice and comparing values in the scenarios, I feel much more confident validating statistical significance for variables. I’ve learned that chi-square is used to determine if an observed crosstab relationship deviates from the expectations of the null hypothesis. I’ve learned that if both variables are ordinal, Somer’s d is the appropriate measure of association, reporting the strength of a relationship. I also learned that Somer’s d is a proportional reduction in error which tells you the extent to which the values of the independent variable predict the values of the dependent variable. These lessons this chapter and their implementation in Worksheet 7 will further my understanding with variable relationships and help me better analyze statistical significance, especially once I begin my research project.