Michelle M Langer

Summary

Affiliation: University of North Carolina
Country: USA

Publications

  1. pmc Item response theory detected differential item functioning between healthy and ill children in quality-of-life measures
    Michelle M Langer
    Thurstone Psychometric Laboratory, University of North Carolina, Davie Hall, CB 3270, Chapel Hill, NC 27599 3270, USA
    J Clin Epidemiol 61:268-76. 2008
  2. pmc PROMIS Pediatric Anger Scale: an item response theory analysis
    Debra E Irwin
    Department of Epidemiology, CB 7295, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
    Qual Life Res 21:697-706. 2012
  3. pmc An item response analysis of the pediatric PROMIS anxiety and depressive symptoms scales
    Debra E Irwin
    Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
    Qual Life Res 19:595-607. 2010
  4. ncbi request reprint Practical issues in the application of item response theory: a demonstration using items from the pediatric quality of life inventory (PedsQL) 4.0 generic core scales
    Cheryl D Hill
    RTI Health Solutions, Research Triangle Park, North Carolina 27709 2194, USA
    Med Care 45:S39-47. 2007

Detail Information

Publications4

  1. pmc Item response theory detected differential item functioning between healthy and ill children in quality-of-life measures
    Michelle M Langer
    Thurstone Psychometric Laboratory, University of North Carolina, Davie Hall, CB 3270, Chapel Hill, NC 27599 3270, USA
    J Clin Epidemiol 61:268-76. 2008
    ..To demonstrate the value of item response theory (IRT) and differential item functioning (DIF) methods in examining a health-related quality-of-life measure in children and adolescents...
  2. pmc PROMIS Pediatric Anger Scale: an item response theory analysis
    Debra E Irwin
    Department of Epidemiology, CB 7295, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
    Qual Life Res 21:697-706. 2012
    ..The objective of the present study was to report on the psychometric properties of the PROMIS Pediatric Anger Scale...
  3. pmc An item response analysis of the pediatric PROMIS anxiety and depressive symptoms scales
    Debra E Irwin
    Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
    Qual Life Res 19:595-607. 2010
    ..The psychometric properties of the anxiety and depressive symptom item banks are described...
  4. ncbi request reprint Practical issues in the application of item response theory: a demonstration using items from the pediatric quality of life inventory (PedsQL) 4.0 generic core scales
    Cheryl D Hill
    RTI Health Solutions, Research Triangle Park, North Carolina 27709 2194, USA
    Med Care 45:S39-47. 2007
    ..This article discusses results obtained using categorical confirmatory factor analysis (CCFA) to check IRT model assumptions and the application of IRT in item analysis and scale evaluation...