@article{Presser2004,
author = {Presser, S. and Couper, M.P. and Lessler, J.T. and Martin, E. and Martin, J. and Rothgeb, J.M. and Singer, E.},
title= {Methods for testing and evaluating survey questions},
year = {2004},
doi = {10.1093/poq/nfh008},
journal = {Public Opinion Quarterly},
volume = {68},
number = {1},
pages = {109--130},
}