1. Longitudinal Invariance and Construct Validity of the Abbreviated Late-Life Function and Disability Instrument in Healthy Older Adults 
Amanda N. Szabo, BS, Sean P. Mullen, PhD, Siobhan M. White, BS, Thomas R. Wojcicki, BS, Emily L. Mailey, MS, Neha Gothe, MS, Erin A. Olson, MS, Jason Fanning, BS, Arthur F. Kramer, PhD, Edward McAuley, PhD 
Archives of Physical Medicine and Rehabilitation 
Volume 92, Issue 5, Pages (May 2011)
DOI: /j.apmr
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions

2. Fig 1 Final model structure for the LL-FDI.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions