Who developed the triangular theory of love?

Which of the following is an example of a social norm in mainstream U.S. culture?

a. bowing to your parents as a greeting b. using your turn signal to indicate which direction you will be turning c. reading a book d. asking a homeless person for help finding an address

There is a fire in your apartment building and smoke begins to fill the hallways. According to the Decision Model of Bystander Intervention, what is the first thing that will need to occur for you to assist others during this emergency?

a. You must decide how you will assist in the situation. b. You must interpret the situation as requiring your help. c. You must notice the smoke. d. You will have to feel a personal responsibility to help.