title: Measuring participation: the Patient-Reported Outcomes Measurement Information System experience.
abstract: OBJECTIVE
  To describe the lessons learned in the initial development of Patient-Reported Outcomes Measurement Information System social function item banks.
  
  
  METHODS
  Development and testing of 2 item pools within a general population to create item banks that measure ability to participate and satisfaction with participation in social activities.
  
  
  METHODS
  Administration via the Internet.
  
  
  METHODS
  General population members (N=956) of a national polling organization registry participated; data for 768 and 778 participants were used in the analysis.
  
  
  METHODS
  Not applicable.
  
  
  METHODS
  Measures of ability to participate and satisfaction with participation in social activities.
  
  
  RESULTS
  Fifty-six items measuring the ability to participate were essentially unidimensional but did not fit an item response theory model. As a result, item banks were not developed for these items. Of the 56 items measuring satisfaction with participation, 14 items measuring social roles and 12 items measuring discretionary activities were unidimensional and met item response theory model assumptions. Two 7-item short forms were also developed.
  
  
  CONCLUSIONS
  Four lessons, mostly concerning item content, were learned in the development of banks measuring social function. These lessons led to item revisions that are being tested in subsequent studies.
authors.affiliation: Department of Physical Medicine and Rehabilitation, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA. r-bode@comcast.net
authors.forename: Rita K
authors.initials: RK
authors.lastname: Bode
authors.forename: Elizabeth A
authors.initials: EA
authors.lastname: Hahn
authors.forename: Robert
authors.initials: R
authors.lastname: DeVellis
authors.forename: David
authors.initials: D
authors.lastname: Cella
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D020407:Internet; D007398:Interpersonal Relations; D008297:Male; D008875:Middle Aged; D017063:Outcome Assessment, Health Care / Q000379:methods*; D010358:Patient Participation / Q000379:methods* / Q000523:psychology; D017060:Patient Satisfaction; D011788:Quality of Life; D012046:Rehabilitation; D012107:Research Design; D011795:Surveys and Questionnaires
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