Title: Biblio RTF Export
Author: Biblio 7.x

Bjorner, J. B., Kosinski, M., & Ware, J. E., J..  (2003).  Calibration of an item pool for assessing the burden of headaches: an application of item response theory to the Headache Impact Test (HIT). Quality of Life Research, 12, 913-933.

Bjorner, J. B., Kosinski, M., & Ware, J. E., J..  (2003).  The feasibility of applying item response theory to measures of migraine impact: a re-analysis of three clinical studies. Quality of Life Research, 12, 887-902.

Hays, R. D., Morales, L. S., & Reise, S. P..  (2000).  Item response theory and health outcomes measurement in the 21st century. Medical Care, 38, II28-II42.