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What’s Missing from National RDD Surveys? The Impact of the Growing Cell-Only Population. Scott Keeter, Pew Research Center Courtney Kennedy, University of Michigan April Clark, Northern Illinois University Trevor Tompson, The Associated Press Mike Mokrzycki, The Associated Press.

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what s missing from national rdd surveys the impact of the growing cell only population
What’s Missing from National RDD Surveys?The Impact of the Growing Cell-Only Population

Scott Keeter, Pew Research Center

Courtney Kennedy, University of Michigan

April Clark, Northern Illinois University

Trevor Tompson, The Associated Press

Mike Mokrzycki, The Associated Press

percent ages 18 29
Percent Ages 18-29

Parameter

Source: Pew Research Center surveys

percent ages 18 291
Percent Ages 18-29

Parameter

Unweighted

survey statistic

Source: Pew Research Center surveys

what we did
What We Did
  • 4 dual-frame surveys in 2006, 4 in 2007, 5 in 2008
  • Multiple surveys on politics and the campaign
  • Others on gadgets, the internet, media consumption, the economy, gender relations
characteristics of landline sample and cell only respondents
Characteristics of Landline Sample and Cell-only Respondents*

*Figures based on unweighted data

characteristics of landline sample and cell only respondents1
Characteristics of Landline Sample and Cell-only Respondents*

*Figures based on unweighted data

characteristics of landline sample and cell only respondents2
Characteristics of Landline Sample and Cell-only Respondents*

*Figures based on unweighted data

impact on estimates from including cell phones3
Impact on Estimates from Including Cell Phones

Based on Republican

& Rep-leaning RVs

(December 2007)

impact on estimates from including cell phones4
Impact on Estimates from Including Cell Phones

Based on Democrat

& Dem-leaning RVs

(December 2007)

under age 30 landline sample and cell only respondents
Under Age 30: Landline Sample and Cell-only Respondents*

*Figures based on unweighted data

under age 30 landline sample and cell only respondents1
Under Age 30: Landline Sample and Cell-only Respondents*

*Figures based on unweighted data

quality of responses
Quality of Responses
  • Are cell phone respondents moredistracted?

Source: October survey

quality of responses1
Quality of Responses
  • Are cell phone respondents lesscooperative?

Source: October survey

interviewing rates
Interviewing Rates

Source: June 2008 survey (results for other surveys were highly similar)

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