Because of their activity level, __________ are more likely to be injured than __________

Field studies of long-term viewing of violence on television suggest that

a. it would be prudent to have children who watch television violence engage in vigorous physical activity to discharge their violent feelings. b. the more closely violent television situations resemble the child's actual environment, the greater their effect will be. c. young children are more vulnerable than older children to the effects of television violence. d. long-term viewing appears to increase aggressive behavior, but the evidence is not conclusive. e. long-term viewing causes aggressive behavior among boys but not among girls.

Of those Americans exposed to a severely traumatic event at some time in their lives, about ______ percent will develop symptoms of posttraumatic stress disorder

a. 10 c. 50 b. 30 d. 70