@article{Conrad2017,
author = {Conrad, F.G. and Couper, M.P. and Tourangeau, R. and Zhang, C.},
title= {Reducing speeding in web surveys by providing immediate feedback},
year = {2017},
doi = {10.18148/srm/2017.v11i1.6304},
volume = {11},
number = {1},
pages = {45--61},
}