Students of public opinion research have argued that voters show very little consistency and structure in their political attitudes. A model of the survey response is proposed which takes account of the vagueness in opinion survey questions and in response categories. When estimates are made of this vagueness or “measurement error” and the estimates applied to the principal previous study, nearly all the inconsistency is shown to be the result of the vagueness of the questions rather than of any failure by the respondents.
Christopher H. Achen (Mon,) studied this question.