Studies have shown that highway drivers are less likely to drive at speeds greater than the posted speed limit if houses or buildings are in some way visible from the road. Assuming similar car, road and traffic conditions, highway drivers are more likely to drive at speeds in excess of the posted speed limit if the natural surroundings are not interrupted by buildings. Psychologists hypothesize that seeing signs of civilization reminds drivers of their responsibility to the safety of their fellow humans, thus making them more likely to obey the posted speed limit.
Which of the following, if true, most strongly supports the psychologists’ interpretation of the study?The psychologists think drivers slow down because signs of human presence make them more aware of other people’s safety.
The best support would show that even a non-building sign of human presence has the same effect.
A. People who live in sparsely populated areas are more likely to buy cars that can drive well in excess of any speed limit.
Wrong. This is about what cars people buy, not about why drivers slow down when they see signs of civilization.
B. Highway drivers passing a large plowed and cultivated field are more likely to obey the speed limit than those passing large field of wild flowers.
Correct. A cultivated field is a sign of human activity, while a wildflower field is more purely natural. If drivers obey the speed limit more near the cultivated field, that supports the idea that signs of human presence make drivers more responsible.
C. Traffic tends to be more congested around towns and cities.
Wrong. This gives an alternate explanation: drivers may slow down because of traffic, not because they feel responsibility toward others.
D. Drivers are equally likely to obey the speed limit whether driving past a town with or without tall buildings.
Weak. Both cases involve a town, so both involve signs of civilization. This does not test the key contrast between
human presence and natural surroundings.
E. Highway police officers are more densely located close to towns and cities, and therefore most citations for speeding are issued in these locations.
Wrong. This gives another alternate explanation: drivers may slow down because they expect police nearby.
Answer: (B)