Worldwide, ________ fuels every contagious disease including STIs (sexually transmitted infections)

Ami is bilingual. Her primary language is Japanese. Given global averages, what likely is the second language she speaks?

a. English b. Spanish c. Chinese d. Russian

Maccoby and Jacklin reported that gender differences exist in all of the following areas EXCEPT

a. visual-spatial ability. c. self-esteem. b. aggression. d. verbal ability.