title: Development and initial evaluation of the SCI-FI/AT.
abstract: OBJECTIVE
  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.
  
  
  METHODS
  Cross sectional survey followed by computerized adaptive test (CAT) simulations.
  
  
  METHODS
  Inpatient and community settings.
  
  
  METHODS
  A sample of 460 adults with traumatic spinal cord injury (SCI) stratified by level of injury, completeness of injury, and time since injury.
  
  
  METHODS
  None
  
  
  METHODS
  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.
  
  
  CONCLUSIONS
  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.
authors.forename: Alan M
authors.initials: AM
authors.lastname: Jette
authors.forename: Mary D
authors.initials: MD
authors.lastname: Slavin
authors.forename: Pengsheng
authors.initials: P
authors.lastname: Ni
authors.forename: Pamela A
authors.initials: PA
authors.lastname: Kisala
authors.forename: David S
authors.initials: DS
authors.lastname: Tulsky
authors.forename: Allen W
authors.initials: AW
authors.lastname: Heinemann
authors.forename: Susie
authors.initials: S
authors.lastname: Charlifue
authors.forename: Denise G
authors.initials: DG
authors.lastname: Tate
authors.forename: Denise
authors.initials: D
authors.lastname: Fyffe
authors.forename: Leslie
authors.initials: L
authors.lastname: Morse
authors.forename: Ralph
authors.initials: R
authors.lastname: Marino
authors.forename: Ian
authors.initials: I
authors.lastname: Smith
authors.forename: Steve
authors.initials: S
authors.lastname: Williams
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009068:Movement; D011788:Quality of Life; D013119:Spinal Cord Injuries / Q000145:classification / Q000534:rehabilitation*; D011795:Surveys and Questionnaires; D015599:Trauma Severity Indices
keywords: Outcome assessment (health care); Psychometrics; Quality of Life; Rehabilitation; Spinal cord injuries