@article{Wilson2006,
author = {Wilson, M. and Allen, D.D. and Li, J.C.},
title= {Improving measurement in health education and health behavior research using item response modeling: comparison with the classical test theory approach},
year = {2006},
doi = {10.1093/her/cyl053},
journal = {Health Education Research},
volume = {21},
pages = {19--32},
}