---
title: "Assessing The Cell Phone Challenge"
description: "A joint study by the Pew Research Center for the People & the Press and the Pew Internet & American Life Project takes an up-to-date look at the potential biases in findings based on landline-only surveys."
date: "2010-05-20"
authors:
  - name: "Leah Christian"
    job_title: "Guest Contributor"
  - name: "Scott Keeter"
    job_title: "Senior Survey Advisor"
    link: "https://www.pewresearch.org/staff/scott-keeter/"
  - name: "Kristen Purcell"
    job_title: "Guest Contributor"
  - name: "Aaron Smith"
    job_title: "Director, Data Labs"
    link: "https://www.pewresearch.org/staff/aaron-smith/"
url: "https://www.pewresearch.org/internet/2010/05/20/assessing-the-cell-phone-challenge-3/"
categories:
  - "Mobile"
---

# Assessing The Cell Phone Challenge

With fully a quarter of the U.S. adult population now relying solely on cell phone service, pollsters and other survey researchers face a difficult decision as to whether to include cell phones in their samples. A joint study by the [Pew Research Center for the People & the Press](http://pewresearch.org/pewresearch-org/politics/) and the Pew Internet & American Life Project takes an up-to-date look at the potential biases in findings based on landline-only surveys. [**Read the full report at PewResearch.org »**](http://pewresearch.org/pubs/1601/assessing-cell-phone-challenge-in-public-opinion-surveys)