In the United States, about two thirds of all children from middle-class families show a(n) __________ attachment

People who drink caffeinated beverages tend to experience increased alertness and psychomotor activity. This demonstrates a(n)

a. positive correlation. b. negative correlation. c. zero correlation d. unknown.

Research supports the idea that we tend to be most attracted to people who are our opposites instead of people to whom we are very similar.

Answer the following statement(s) true (T) or false (F)