Author Question: The difference between a point biserial coefficient and a normal Pearson correlation coefficient is ... (Read 222 times)

londonang · **on:** Jun 20, 2018

The difference between a point biserial coefficient and a normal Pearson correlation coefficient is that

a. a point biserial correlation is based on two continuous variables.
b. a point biserial correlation is based on one dichotomous variable and one continuous variable.
c. a point biserial correlation is based on two dichotomous variables.
d. the kind of variable has nothing to do with the issue.

Question 2

A dichotomous variable is one that

a. can take on any number of values.
b. can take on one of only three values.
c. can take on one of only two values.
d. can take on only one value.