Development and initial evaluation of the SCI-FI/AT

Alan M. Jette, Mary D. Slavin, Pengsheng Ni, Pamela A. Kisala, David S. Tulsky, Allen W. Heinemann, Susie Charlifue, Denise G. Tate, Denise Fyffe, Leslie Morse, Ralph Marino, Ian Smith, Steve Williams

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


Objectives: To describe the domain structure and calibration of the Spinal Cord Injury Functional Index for samples using Assistive Technology (SCI-FI/AT) and report the initial psychometric properties of each domain. Design: Cross sectional survey followed by computerized adaptive test (CAT) simulations. Setting: Inpatient and community settings. Participants: A sample of 460 adults with traumatic spinal cord injury (SCI) stratified by level of injury, completeness of injury, and time since injury. Interventions: None Main outcome measure: SCI-FI/AT Results: Confirmatory factor analysis (CFA) and Item response theory (IRT) analyses identified 4 unidimensional SCI-FI/AT domains: Basic Mobility (41 items) Self-care (71 items), Fine Motor Function (35 items), and Ambulation (29 items). High correlations of full item banks with 10-item simulated CATs indicated high accuracy of each CAT in estimating a person's function, and there was high measurement reliability for the simulated CAT scales compared with the full item bank. SCI-FI/AT item difficulties in the domains of Self-care, Fine Motor Function, and Ambulation were less difficult than the same items in the original SCI-FI item banks. Conclusion: With the development of the SCI-FI/AT, clinicians and investigators have available multidimensional assessment scales that evaluate function for users of AT to complement the scales available in the original SCI-FI.

Original languageEnglish (US)
Pages (from-to)409-418
Number of pages10
JournalJournal of Spinal Cord Medicine
Issue number3
StatePublished - May 1 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© The Academy of Spinal Cord Injury Professionals, Inc. 2015.


  • Outcome assessment (health care)
  • Psychometrics
  • Quality of Life
  • Rehabilitation
  • Spinal cord injuries


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