A 2 × 2 table of counts can be useful when computing which correlation coefficient?
A) Spearman rho
B) point-biserial
C) phi coefficient
D) Spearman-Brown coefficient

Question

Quizplus · Accepted Answer

A 2 × 2 table of counts is used for nominal data and can be used to compute the phi coefficient, which measures the association between two dichotomous variables. The other correlation coefficients listed (Spearman rho, point-biserial, and Spearman-Brown) are used for different data types and do not require a 2 × 2 table of counts.

A 2 × 2 Table of Counts Can Be Useful