title: Development and psychometric characteristics of the SCI-QOL Ability to Participate and Satisfaction with Social Roles and Activities item banks and short forms.
abstract: OBJECTIVE
  To develop a spinal cord injury (SCI)-focused version of PROMIS and Neuro-QOL social domain item banks; evaluate the psychometric properties of items developed for adults with SCI; and report information to facilitate clinical and research use.
  
  
  METHODS
  We used a mixed-methods design to develop and evaluate Ability to Participate in Social Roles and Activities and Satisfaction with Social Roles and Activities items. Focus groups helped define the constructs; cognitive interviews helped revise items; and confirmatory factor analysis and item response theory methods helped calibrate item banks and evaluate differential item functioning related to demographic and injury characteristics.
  
  
  METHODS
  Five SCI Model System sites and one Veterans Administration medical center.
  
  
  METHODS
  The calibration sample consisted of 641 individuals; a reliability sample consisted of 245 individuals residing in the community.
  
  
  RESULTS
  A subset of 27 Ability to Participate and 35 Satisfaction items demonstrated good measurement properties and negligible differential item functioning related to demographic and injury characteristics. The SCI-specific measures correlate strongly with the PROMIS and Neuro-QOL versions. Ten item short forms correlate >0.96 with the full banks. Variable-length CATs with a minimum of 4 items, variable-length CATs with a minimum of 8 items, fixed-length CATs of 10 items, and the 10-item short forms demonstrate construct coverage and measurement error that is comparable to the full item bank.
  
  
  CONCLUSIONS
  The Ability to Participate and Satisfaction with Social Roles and Activities CATs and short forms demonstrate excellent psychometric properties and are suitable for clinical and research applications.
authors.forename: Allen W
authors.initials: AW
authors.lastname: Heinemann
authors.forename: Pamela A
authors.initials: PA
authors.lastname: Kisala
authors.forename: Elizabeth A
authors.initials: EA
authors.lastname: Hahn
authors.forename: David S
authors.initials: DS
authors.lastname: Tulsky
mesh_terms: D000328:Adult; D002138:Calibration; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010549:Personal Satisfaction; D011594:Psychometrics; D011788:Quality of Life; D012919:Social Behavior; D013119:Spinal Cord Injuries / Q000523:psychology*; D011795:Surveys and Questionnaires / Q000592:standards*
keywords: Community participation; Quality of life; Social participation; Spinal cord injuries