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IRT health outcomes data analysis project: an overview and summary.

Publication ,  Conference
Cook, KF; Teal, CR; Bjorner, JB; Cella, D; Chang, C-H; Crane, PK; Gibbons, LE; Hays, RD; McHorney, CA; Ocepek-Welikson, K; Raczek, AE ...
Published in: Qual Life Res
2007

BACKGROUND: In June 2004, the National Cancer Institute and the Drug Information Association co-sponsored the conference, "Improving the Measurement of Health Outcomes through the Applications of Item Response Theory (IRT) Modeling: Exploration of Item Banks and Computer-Adaptive Assessment." A component of the conference was presentation of a psychometric and content analysis of a secondary dataset. OBJECTIVES: A thorough psychometric and content analysis was conducted of two primary domains within a cancer health-related quality of life (HRQOL) dataset. RESEARCH DESIGN: HRQOL scales were evaluated using factor analysis for categorical data, IRT modeling, and differential item functioning analyses. In addition, computerized adaptive administration of HRQOL item banks was simulated, and various IRT models were applied and compared. SUBJECTS: The original data were collected as part of the NCI-funded Quality of Life Evaluation in Oncology (Q-Score) Project. A total of 1,714 patients with cancer or HIV/AIDS were recruited from 5 clinical sites. MEASURES: Items from 4 HRQOL instruments were evaluated: Cancer Rehabilitation Evaluation System-Short Form, European Organization for Research and Treatment of Cancer Quality of Life Questionnaire, Functional Assessment of Cancer Therapy and Medical Outcomes Study Short-Form Health Survey. RESULTS AND CONCLUSIONS: Four lessons learned from the project are discussed: the importance of good developmental item banks, the ambiguity of model fit results, the limits of our knowledge regarding the practical implications of model misfit, and the importance in the measurement of HRQOL of construct definition. With respect to these lessons, areas for future research are suggested. The feasibility of developing item banks for broad definitions of health is discussed.

Duke Scholars

Published In

Qual Life Res

DOI

ISSN

0962-9343

Publication Date

2007

Volume

16 Suppl 1

Start / End Page

121 / 132

Location

Netherlands

Related Subject Headings

  • Surveys and Questionnaires
  • Stress, Psychological
  • Software
  • Quality of Life
  • Psychometrics
  • Outcome Assessment, Health Care
  • Neoplasms
  • Male
  • Humans
  • Health Status
 

Citation

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Cook, K. F., Teal, C. R., Bjorner, J. B., Cella, D., Chang, C.-H., Crane, P. K., … Reeve, B. B. (2007). IRT health outcomes data analysis project: an overview and summary. In Qual Life Res (Vol. 16 Suppl 1, pp. 121–132). Netherlands. https://doi.org/10.1007/s11136-007-9177-5
Cook, Karon F., Cayla R. Teal, Jakob B. Bjorner, David Cella, Chih-Hung Chang, Paul K. Crane, Laura E. Gibbons, et al. “IRT health outcomes data analysis project: an overview and summary.” In Qual Life Res, 16 Suppl 1:121–32, 2007. https://doi.org/10.1007/s11136-007-9177-5.
Cook KF, Teal CR, Bjorner JB, Cella D, Chang C-H, Crane PK, et al. IRT health outcomes data analysis project: an overview and summary. In: Qual Life Res. 2007. p. 121–32.
Cook, Karon F., et al. “IRT health outcomes data analysis project: an overview and summary.Qual Life Res, vol. 16 Suppl 1, 2007, pp. 121–32. Pubmed, doi:10.1007/s11136-007-9177-5.
Cook KF, Teal CR, Bjorner JB, Cella D, Chang C-H, Crane PK, Gibbons LE, Hays RD, McHorney CA, Ocepek-Welikson K, Raczek AE, Teresi JA, Reeve BB. IRT health outcomes data analysis project: an overview and summary. Qual Life Res. 2007. p. 121–132.
Journal cover image

Published In

Qual Life Res

DOI

ISSN

0962-9343

Publication Date

2007

Volume

16 Suppl 1

Start / End Page

121 / 132

Location

Netherlands

Related Subject Headings

  • Surveys and Questionnaires
  • Stress, Psychological
  • Software
  • Quality of Life
  • Psychometrics
  • Outcome Assessment, Health Care
  • Neoplasms
  • Male
  • Humans
  • Health Status