Mode Effects on In-Person and Internet Surveys: A Comparison of the General Social Survey and Knowledge Network Surveys

A series of experiments have been carried out comparing the 2002-2006 General Social Survey with data collected from the Web-enabled Knowledge Networks Panel surveys. First, the results indicate that the level of don’t knows are highly contingent on format and layout. It is possible, however, to design in-person and web-surveys to produce similar and comparable levels of item on-response. Second, the substantive distributions are not...