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  3. Communications technologies are far from equal when it comes to conveying the truth. The first study to compare honesty across a

Communications technologies are far from equal when it comes to conveying the truth. The first study to compare honesty across a

admin2010-10-14  53
问题     Communications technologies are far from equal when it comes to conveying the truth. The first study to compare honesty across a range of communications media has found that people are twice as likely to tell lies in phone conversations as they are in emails. The fact that emails are automatically recorded--and can come back to haunt(因扰)you--appears to be the key to the finding.
    Jeff Hancock of Cornell University in Ithaca, New York, asked 30 students to keep a communications diary for a week. In it they noted the number of conversations or email exchanges they had lasting more than 10 minutes, and confessed to how many lies they told. Hancock then worked out the number of lies per conversation for each medium. He found that lies made up 14% of emails, 21% of instant messages, 27% of face-to-face interactions and astonishing 37% of phone calls.
    His results, to be presented at the conference on human-computer interaction in Vienna, Austria, in April, have surprised psychologists. Some expected emailers to be the biggest liars, reasoning that because deception makes people uncomfortable, the detachment(非直接接触)of emailing would make it easier to lie.  Others expected people to lie more in face-to-face exchanges because we are most practiced at that form of communication.
    But Hancock says it is also crucial whether a conversation is being recorded and could be re-read, and whether it occurs in real time. People appear to be afraid to lie when they know the communication could later be used to hold them to account, he says. This is why fewer lies appear in email than on the phone.
    People are also more likely to lie in real time--in an instant message or phone call, say--than if they have time to think of a response, says Hancock. He found many lies are spontaneous(脱口而的)responses to an unexpected demand, such as: "Do you like my dress?"
    Hancock hopes his research will help companies work out the best ways for their employees to communicate. For instance, the phone might be the best medium for sales where employees are encouraged to stretch the truth. But given his results, work assessment, where honesty is a priority, might be best done using email.
Hancock’s study focuses on ______.
选项 A、the consequences of lying in various communications media
B、the success of communications technologies in conveying ideas
C、people’s preferences in selecting communications technologies
D、people’s honesty levels across a range of communications media
答案D
解析 主旨概述。文章开头即本文主旨：不同的交流手段在传递事实时大不一样。有人首次对一些交流媒介中人们的诚实度进行了研究比较。下文则详述该研究情况。选项D)正确。
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