Improvement of a Questionnaire Measuring Activity Limitations in Rising and Sitting Down in Patients With Lower-Extremity Disorders Living at Home Leo D. Roorda, MD, PT, Ivo W. Molenaar, PhD, Gustaaf J. Lankhorst, MD, PhD, Lex M. Bouter, PhD Archives of Physical Medicine and Rehabilitation Volume 86, Issue 11, Pages 2204-2210 (November 2005) DOI: 10.1016/j.apmr.2005.06.005 Copyright © 2005 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
Fig 1 Activity limitation parameters (↑) of John, Maria, and Phil, and IRFs (dotted lines) and item location parameters βi (↓) of the items 1 to 3. Activity limitations in R&S on the x axis. Located more to the right on the x axis are patients with more activity limitations and items with higher item location parameters. Probability of a positive response on the y axis. Archives of Physical Medicine and Rehabilitation 2005 86, 2204-2210DOI: (10.1016/j.apmr.2005.06.005) Copyright © 2005 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions