@article {165, title = {Computer adaptive testing improved accuracy and precision of scores over random item selection in a physical functioning item bank}, journal = {Journal of Clinical Epidemiology}, volume = {59}, number = {11}, year = {2006}, pages = {1174-1182}, isbn = {08954356}, author = {Haley, S. and Ni, P. and Hambleton, R. K. and Slavin, M. and Jette, A.} }