The finding that a correlation exists between scores on all standardized intelligence tests and ____ has been a problem in defining intelligence.
a. gender
b. profession
c. chronological age
d. socioeconomic status
Question 2
Which of the following is used to describe the relationship between two dichotomous variables, at least one of which is a true dichotomy?
a. tetrachoric correlation
b. phi coefficient
c. point biserial correlation
d. Spearman's rho