Critics of public opinion polls often claim that methodological shortcuts taken to collect timely data produce biased results. This study compares two random digit dial national telephone surveys that used identical questionnaires but very different levels of effort: a "Standard" survey conducted over a 5-day period that used a sample of adults who were home when the interviewer called, and a "Rigorous" survey conducted over an 8-week period that used random selection from among all adult household members. Response rates, computed according to AAPOR guidelines, were 60.6 percent for the Rigorous and 36.0 percent for the Standard study. Nonetheless, the two surveys produced similar results. Across 91 comparisons, no difference exceeded 9 percentage points, and the average difference was about 2 percentage points. Most of the statistically significant differences were among demographic items. Very few significant differences were found on attention to media and engagement in politics, social trust and connectedness, and most social and political attitudes, including even those toward surveys.

No abstract

Research in political behavior has increasingly turned to the cognitions underlying attitudes. The simplest of these cognitions are political facts -the bits of information about politics that citizens hold. While other key concepts in political science -partisanship, trust, tolerance -have widely used (if still controversial) measures that facilitate comparisons across time and among studies, the discipline has no generally accepted measure of the public's level of political information. This paper describes the development and testing of survey-based measures of political knowledge, with special attention to the existing items on the National Election Study surveys. In so doing, it illustrates the use of a variety of techniques for item analysis and scale construction. We also present a recommended five-item knowledge index. Research in political behavior has increasingly turned to the cognitions underlying attitudes. The simplest of these cognitions are political facts-the bits of information about politics that citizens hold. While other key concepts in political science-partisanship, trust, tolerance-have widely used (if still controversial) measures that facilitate comparisons across time and among studies, the discipline has no generally accepted measure of the public's level of political information. This paper describes the development and testing of survey-based measures of political knowledge, with special attention to the existing items on the National Election Study surveys. In so doing, it illustrates the use of a variety of techniques for item analysis and scale construction. We also present a recommended fiveitem knowledge index. Disciplines Social Influence and Political Communication

No abstract

No abstract