No more waiting for cell phone-only households to be included in Arbitron diary market sampling. The company says all diary markets (excluding Puerto Rico) will get cell phone-only sampling by the ...

Arbitron customers in some diary markets won’t have to wait until the Fall survey next year to get what PPM markets already have – people in the local sample from homes with only cellular telephones.

With more American households giving up their old-fashioned landlines and using cell phones for all calls, public opinion researchers are facing a challenge of how to make sure they are getting ...

WASHINGTON — In a first for any age group, more than half of Americans age 25-29 live in households with cell phones but no traditional landline telephones. A report on phone use by the federal ...

It would seem pretty easy to get in touch with Jessica Chavez — she always has her cell phone with her. Actually, that's all she has. Like many people her age, Chavez has no use for a conventional ...