If participants in a study are classified by age (over 30/under 30)and by political affiliation (Democrat/Republican),then the point-biserial correlation would be the proper technique to measure the relationship between the two variables.

Question

Quizplus · Accepted Answer

The point-biserial correlation is used to measure the relationship between a continuous variable and a dichotomous variable. In this case, both variables are dichotomous (age and political affiliation), so a different correlation technique such as chi-square or phi coefficient would be more appropriate.

If Participants in a Study Are Classified by Age (Over