Journal of Clinical Epidemiology
Volume 59, Issue 5 , Pages 478-484 , May 2006

A 37-item shoulder functional status item pool had negligible differential item functioning

  • Paul K. Crane

      Affiliations

    • Division of General Internal Medicine, University of Washington School of Medicine, Seattle, WA, USA
    • Corresponding Author InformationCorresponding author. Tel.: 206-744-1831.
    • ,
  • Dennis L. Hart

      Affiliations

    • Focus On Therapeutic Outcomes, Inc., 551 Yopps Cove Road, White Stone, VA 22578, USA
    • ,
  • Laura E. Gibbons

      Affiliations

    • Division of General Internal Medicine, University of Washington School of Medicine, Seattle, WA, USA
    • ,
  • Karon F. Cook

      Affiliations

    • Veterans Affairs Measurement Excellence and Training Resource Information Center (METRIC), Houston, TX, USA
    • University of Washington Center on Outcomes Research Rehabilitation, Seattle, WA, USA

,Accepted 2 October 2005.

References 

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  3. In:  Holland PW,  Wainer H editor. Differential item functioning. Hillsdale, NJ: Lawrence Erlbaum Associates; 1993;
  4. Hart DL, Cook KF, Mioduski JE, Teal CR, Crane PK. Simulated computerized adaptive test for patients with shoulder impairments was efficient and produced valid measures of function. J Clin Epidemiol. 2006;59:290–298
  5. Cook KF, Roddey TS, Gartsman GM, Olson SL. Development and psychometric evaluation of the Flexilevel Scale of Shoulder Function. Med Care. 2003;41:823–835
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  10. StataCorp . Stata statistical software. Release 8.0. College Station, TX: Stata Corporation; 2003;
  11. Crane PK, van Belle G, Larson EB. Test bias in a cognitive test: differential item functioning in the CASI. Stat Med. 2004;23:241–256
  12. In:  McCullagh P,  Nelder JA editor. Generalized linear models. 2nd ed. London: Chapman and Hall; 1989;
  13. Reise SP, Widaman KF, Pugh RH. Confirmatory factor analysis and item response theory: two approaches for exploring measurement invariance. Psychol Bull. 1993;114:552–566
  14. Bock RD, Mislevy RJ. Adaptive EAP estimation of ability in a microcomputer environment. Appl Psychol Meas. 1982;6:431–444

PII: S0895-4356(05)00354-9

doi: 10.1016/j.jclinepi.2005.10.007

Journal of Clinical Epidemiology
Volume 59, Issue 5 , Pages 478-484 , May 2006

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