The structure and stability of the functional independence measure

John Michael Linacre, Allen W. Heinemann*, Benjamin D. Wright, Carl V. Granger, Byron B. Hamilton

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

832 Scopus citations


The Functional Independence Measure (FIM) records the severity of disability of rehabilitation patients. The necessarily curvilinear relationship between the finite range of recorded FIM raw scores and the conceptually infinite range of additive disability measures is resolved through Rasch analysis. The analysis of admission and discharge FIM ratings of 14,799 patients shows that the 18 FIM items define two statistically and clinically different indicators. Thirteen items define disability in motor functions. Five items define disability in cognitive functions. Additive measures for each indicator have the same characteristics at admission and discharge, so that these measures can be used to assess change in patient status.

Original languageEnglish (US)
Pages (from-to)127-132
Number of pages6
JournalArchives of physical medicine and rehabilitation
Issue number2
StatePublished - Feb 1994

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Rehabilitation


Dive into the research topics of 'The structure and stability of the functional independence measure'. Together they form a unique fingerprint.

Cite this