The e-MSWS-12: improving the multiple sclerosis walking scale using item response theory - Engelhard, Matthew M.; Schmidt, Karen M.; Engel, Casey E.; Brenton, J. Nicholas; Patek, Stephen D.; Goldman, Myla D. (Quality of life research, 2016)
Keywords: Adult; Aged; Aged, 80 and over; Clinical outcomes; Dimensionality; Disabilities; Disability; Disability Evaluation; Discriminant analysis; Disease models; Female; Humans; INSTRUMENT DEVELOPMENT; Item response theory; Male; Medicine; Medicine & Public Health; Middle Aged; Multiple sclerosis; Multiple Sclerosis - therapy; Neurology; Physical fitness; Psychometrics; Public Health; Quality of life; Quality of Life Research; Sickness Impact Profile; Sociology; Standard error of estimate; Standard error of measurement; Test bias; Three dimensional modeling; Walking; Walking - physiology; Multiple sclerosis; Differential item functioning; Graded response model; 12-Item multiple sclerosis walking scale; Item response theory; Timed 25-foot walk