Correlations can also be computed for variables based on ordinal or nominal data. These tests include:
A) point biserial correlation
B) spearman correlation coefficient
C) coefficient of determination
D) a and b
E) b and c

Question

Quizplus · Accepted Answer

Point biserial correlation is used for datasets where one variable is dichotomous (nominal) and the other is continuous, while Spearman correlation coefficient is used for ordinal data or non-parametric data, making both A and B correct. Coefficient of determination is related to Pearson's correlation coefficient for linear relationships between two continuous variables, not specifically for ordinal or nominal data.

Correlations Can Also Be Computed for Variables Based on Ordinal