Cattell used a statistical technique called factor analysis to reduce a large number of visible traits into 16 __________ traits, or factors

In the United States, the school year is ______ that of South Korea and China

a. equal to b. slightly shorter than c. a lot shorter than d. much longer than

The distinguishing element of rational emotive behavior therapy is its

a. empirical approach. b. belief substitution. c. emotional focus. d. confrontational method.