Which sex hormones are primarily responsible for the male sex drive, but also play a role in the female sex drive?

According to research, adolescents who work long hours in high school have lower rates of alcohol use than non-working adolescents

Indicate whether this statement is true or false.

A within-subjects design also is known as a _____ design

a. between-groups b. dependent-subjects c. treatment-by-subjects d. independent-groups