To get the truth send and e-mail.

• Position: Technology

Truthfulness prevails in e-mail messages, a new study has found. Students who tracked their ties for a week reported letting ties in 15 percent of e-mail messages, compared with more than a third of phone carts, 25 percent of face-to-face talks, and about 20 percent of instant message chats. Jeffrey Hancock of Cornell University, the study's lead researcher, says e-mail leaves a record, perhaps...