RT Article T1 The reliability of survey attitude measurement - the influence of question and respondent attributes JF Sociological methods & research VO 20 IS 1 A1 Alwin, Duane F. 1944- A2 Krosnick, Jon A. LA English YR 1991 UL https://krimdok.uni-tuebingen.de/Record/1640157417 K1 Umfrageforschung