A four-year-old girl sucks her thumb, a teenager binges on food, and an adult woman bites her fingernails. According to the Freudian theory of psychosexual development, all three are fixated at the ________ stage

Some research has shown that there are gender differences in aggression. These findings suggest that

A) higher levels of testosterone may produce more outward aggression in males. B) males are more likely to engage in relational aggression than females. C) males engage in more nondirect aggression than females. D) females are more likely to be affected by high temperatures than males.

Which of the following is a non-medical treatment for sexual arousal disorders that is available to women?

A) Erotica B) The Eros vacuum pump for the clitoris C) Viagra D) Vaginal dilators