If one of our variables is a dichotomy, the correlation we compute is A) Spearman's r _S. B) a rank correlation. C) a point-biserial correlation. D) a tetrachoric correlation.

Question

Quizplus · Accepted Answer

When one of the variables is a dichotomy (binary variable with only two levels), the appropriate correlation to compute is a point-biserial correlation. This measures the relationship between a continuous variable and a dichotomous variable.

If One of Our Variables Is a Dichotomy, the Correlation