Assessing measurement equivalence of different forms of administration of the cam bridge pulmonary hypertension outcome review (camphor) using rasch analysis

Twiss, J., McKenna, S., Graham, J. E., Swetz, K. M., Sloan, J., & Gomberg-Maitland, M. (2013). Assessing measurement equivalence of different forms of administration of the cam bridge pulmonary hypertension outcome review (camphor) using rasch analysis. Value in Health, 16(7), A606. https://doi.org/10.1016/j.jval.2013.08.1731