A researcher wants to measure the degree of association between two variables, education and product knowledge. Education is measured by asking respondents to choose from one of the four options: less than high school, high school, some college, college graduate. Product knowledge is measured by asking respondents to pick from one of the three options: no knowledge, some knowledge, very knowledgeable. Given this information, which of the following measures would be appropriate?

A researcher wants to measure the degree of association between two variables, education and product knowledge. Education is measured by asking respondents to choose from one of the four options: less than high school, high school, some college, college graduate. Product knowledge is measured by asking respondents to pick from one of the three options: no knowledge, some knowledge, very knowledgeable. Given this information, which of the following measures would be appropriate? 



A. Chi-square test

B. Pearson correlation coefficient

C. Coefficient of determination

D. Spearman rank-order correlation coefficient

E. Scatter plot



Answer: D


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