RT Article T1 Measuring social indicators in opinion surveys - a method to improve accuracy on sensitive questions JF Social indicators research VO 27 IS 2 SP 169 OP 186 A1 Makkai, T. A2 Mcallister, I. LA German YR 1992 UL https://krimdok.uni-tuebingen.de/Record/1640145826 K1 Meinungsumfrage K1 Sozialindikatoren