The death of whom was responsible for generating interest in the bystander problem?

Socialization sources include

a. peers and friends. b. school and teachers. c. media and community. d. all of the above.

By middle childhood, girls' relational aggression is

A) more malicious than boys'. B) displayed more frequently. C) more likely to be directed at same-sex peers. D) more likely to be directed at other-sex peers.