Item response theory-based measure of global disability in multiple sclerosis derived from the Performance Scales and related items

Validation of patient determined disease steps (PDDS) scale scores in persons with multiple sclerosis

(2013) Yvonne C Learmonth et al.   BMC Neurology

Bifactor structure of clinical disability in relapsing multiple sclerosis

(2013) Eric Chamot et al.   Multiple Sclerosis and Related Disorders

“Seeing” in NARCOMS: a look at vision-related quality of life in the NARCOMS registry

(2012) Amber R Salter et al.   Multiple Sclerosis Journal

Cognitive reserve and patient-reported outcomes in multiple sclerosis

(2012) Carolyn E Schwartz et al.   Multiple Sclerosis Journal

The Rediscovery of Bifactor Measurement Models

(2012) Steven P. Reise   MULTIVARIATE BEHAVIORAL RESEARCH

Factor structure of Guy’s Neurological Disability Scale in a sample of Dutch patients with multiple sclerosis

(2011) LB Mokkink et al.   Multiple Sclerosis Journal

Using latent trajectory analysis of residuals to detect response shift in general health among patients with multiple sclerosis article

(2011) Sara Ahmed et al.   QUALITY OF LIFE RESEARCH

Using structural equation modeling to detect response shift in performance and health-related quality of life scores of multiple sclerosis patients

(2011) Bellinda L. King-Kallimanis et al.   QUALITY OF LIFE RESEARCH

Continued validation of the Symptom Inventory in multiple sclerosis

(2009) Robert W. Motl et al.   JOURNAL OF THE NEUROLOGICAL SCIENCES