With respect to the debate over the process of language development, nature is to nurture as ________ is to ________

Keith and David are most likely to have a communal relationship if they are ____ and most likely to have an exchange relationship if they are ____

a. business partners? friends b. romantic partners? strangers c. teammates? brothers d. classmates? business competitors

In one of the first social psychological experiments ever conducted, researcher Norman Triplett built a "competition machine," in which children wind up a fishing reel. He found that the children were able to wind more quickly when ____

a. they worked as a group side by side than when they worked alone b. they worked alone than when they worked as a group side by side c. they were explicitly asked to work as fast as possible d. they were explicitly asked to take their time to "get it right"