Mulcahey, M. J., Haley, S. M., Duffy, T., Pengsheng, N., & Betz, R. R..  (2008).  Measuring physical functioning in children with spinal impairments with computerized adaptive testing. Journal of Pediatric Orthopedics, 28, 330-5. presented at the Apr-May.

Siebens, H., Andres, P. L., Pengsheng, N., Coster, W. J., & Haley, S. M..  (2005).  Measuring physical function in patients with complex medical and postsurgical conditions: a computer adaptive approach. American Journal of Physical Medicine and Rehabilitation, 84, 741-8. presented at the Oct.