[ Longitudinal Surveys ]

Knowledge Networks conducts both cross-sectional and longitudinal surveys for a broad spectrum of academics – economists, political scientists, psychologists, sociologists, health researchers, and others – who require high-quality survey data.  Projects range from one-time surveys, to multiple waves with cross-sectional samples, to longitudinal surveys spanning several waves across a couple years.  The samples may draw from the general population or from those meeting certain demographic requirements, health characteristics, or other unique criteria. Some researchers require a few hundred or several thousand interviews with a nationally representative sample (see, for example, the Annenberg National Health Communication Survey, at http://anhcs.asc.upenn.edu/), while others focus on particular geographic regions or even state-level populations (from states with larger populations).  Researchers' designs often require additional features, such as random assignment of sample to different treatments; audio and/or video integrated into surveys; measurement of item response time at the millisecond level; or full coverage of U.S. Spanish language survey takers.  Academics may supplement their surveys via KN's qualitative research capabilities, including online focus groups or town hall meetings; video questions and answers; moderated probing; and in-depth telephone interviews.

FEATURED LINKS TO PAPERS AND PROJECT DESCRIPTIONS

• Panel Conditioning and Attrition in the AP/Yahoo! News Election Panel Studies
  Yelena Kruse, Mario Callegaro, Mike Dennis, Stefan Subias, Mike Lawrence, and Charles DiSogra, Knowledge Networks, and Trevor Tompson, The Associated Press
• Web Panel Studies of the 2008 Election:  New Opportunities for Causal Analysis of Dynamic Change in the Electorate
  Mike Dennis, Knowledge Networks, and Trevor Tompson, The Associated Press
• Scientists Turn to Knowledge Networks for High Quality Research on the Longterm Effects of 9/11

FEATURED INTERVIEW

• Connecting with Americans to Secure the Future
  An Interview with Dr. James N. Breckenridge