The phi correlation coefficient is a measure for the direction and strength of the linear relationship between two ______ variables.
A) dichotomous
B) curvilinear
C) ordinal
D) significant

Question

Quizplus · Accepted Answer

The phi correlation coefficient is specifically designed to measure the relationship between two dichotomous variables, or variables that have two mutually exclusive categories. Therefore, the best choice is A, dichotomous. Choices B and C are incorrect because curvilinear and ordinal variables do not necessarily have two categories, and the phi coefficient is not appropriate for measuring relationships between these types of variables. Option D, significant, is not a type of variable and does not relate to the phi coefficient.

The Phi Correlation Coefficient Is a Measure for the Direction