RT Article
T1 Cover letter reduces response rate
JF Bulletin of sociological methodology
VO 137/138
IS 1
SP 140
OP 156
A1 Antholz, Birger
LA English
YR 2018
UL https://krimdok.uni-tuebingen.de/Record/1649879709
K1 Survey
K1 Split-ballot sample
K1 Covering letter
K1 Bias effect
K1 Return rate
K1 Umfrageforschung
K1 Split-Ballot-Experiment
K1 Anschreiben
K1 Befragung
K1 Antwortverhalten
K1 Verzerrung
K1 Rücklaufrate