The Twilight of Landline Interviewing
By Courtney Kennedy, Kyley McGeeney and Scott Keeter Now that over 90% of U.S. adults have cellphones,[1. Stephen J. Blumberg and Julian V. Luke. Wireless substitution: Early Release of Estimates From the National Health Interview Survey, July–December 2015. National Center for Health Statistics. May 2016. Available from: http://www.cdc.gov/nchs/nhis.htm] survey researchers are considering whether it is necessary […]