The term researchers use to describe activity that involves people using more than one type of media at a time is __________

Which of the following is a valid criticism of the "distancing hypothesis"?

a. Distancing may have an evolutionary basis. b. Parent-adolescent conflict increases in adolescence. c. Distancing does not occur in all cultures. d. Some adolescents really love their parents.

Which of the following statements about death rates and causes in the United States is true?

A) The leading cause of death in early adulthood is suicide. B) Homicide death rates rise with age. C) Death rates for all causes in the United States exceed those of other industrialized nations. D) Death rates due to disease decline with age.