When meeting a person for the first time in the work place, it is customary to shake hands. Shaking hands in this context is an example of a:

As part of an assignment, Bill's class was asked to complete an anonymous questionnaire on prejudice. Which research method was Bill's professor using?

a. field experiment b. survey c. naturalistic observation d. laboratory experiment

A mother gives birth to a premature infant. This infant snores and holds its breath while it sleeps. The infant also tends to remain passive when its face rolls into a pillow or blanket with the mother having to quickly move the infant's face away from the object. His mother should be warned that her infant is at risk for

a. SIDS. b. night terrors. c. somnambulism. d. narcolepsy.