Five-year-old Bethany enters to the room and promptly sits on the school psychologist's lap without acknowledging her. This is an example of Bethany's ability to differentiate what is social and nonsocial and is known as _____

The impact on performance of the presence of other people engaged in the same task is also known as _____

a) coaction effects. b) social facilitation. c) conformity. d) the actor-observer effect.

Which of the following newborn infants is most at risk of death in the United States?

a. Eric, a White American male. b. Jerome, an African-American male. c. Alan, an Asian-American male. d. Kim, an Asian-American female.