Of the following correlation coefficients, which requires ordinal data?
A) the Pearson r
B) the coefficient of contingency
C) the Spearman rs
D) all of these

Question

Quizplus · Accepted Answer

The Spearman rs correlation coefficient requires ordinal data as it involves ranking the data instead of just measuring the distance between values like the Pearson r coefficient. The coefficient of contingency can be used with nominal data.

Of the Following Correlation Coefficients, Which Requires Ordinal Data