Masters and Johnson’s report Human Sexual Behavior differs from surveys of sexual behavior because:

According to the NHSLS, about _____ of men report always having an orgasm with their partner.

The most difficult part of the sampling procedure in sex research is:

_____ is the problem that occurs when sex researchers can study only those people who have agreed to participate in the study.

Social exchange theory has been criticized because:

Sexual disorders can be classified as _____ or _____.

According to sociobiology, which of the following would be a good indicator of a person’s reproductive potential?

Operant conditioning studies suggest that the most effective shapers of our sexual behaviors are:

Freud’s term for sex drive or sex energy is:

“Enlargement” and “concealment” are examples of: