Dynamic Assessment of Health Outcomes: Time to Let the CAT Out of the Bag?

Health Services Research - Tập 40 Số 5p2 - Trang 1694-1711 - 2005
Karon F. Cook1, Kimberly J. OʼMalley, Toni Roddey
1Veterans Affairs Measurement of Excellence Training Resource Information Center, Houston Center of Quality Care and Utilization Studies, Houston, TX 77007, USA.

Tóm tắt

Background. The use of item response theory (IRT) to measure self‐reported outcomes has burgeoned in recent years. Perhaps the most important application of IRT is computer‐adaptive testing (CAT), a measurement approach in which the selection of items is tailored for each respondent.Objective. To provide an introduction to the use of CAT in the measurement of health outcomes, describe several IRT models that can be used as the basis of CAT, and discuss practical issues associated with the use of adaptive scaling in research settings.Principal Points. The development of a CAT requires several steps that are not required in the development of a traditional measure including identification of “starting” and “stopping” rules. CAT's most attractive advantage is its efficiency. Greater measurement precision can be achieved with fewer items. Disadvantages of CAT include the high cost and level of technical expertise required to develop a CAT.Conclusions. Researchers, clinicians, and patients benefit from the availability of psychometrically rigorous measures that are not burdensome. CAT outcome measures hold substantial promise in this regard, but their development is not without challenges.

Từ khóa


Tài liệu tham khảo

10.1001/archinte.160.21.3252

Anastasi A., 1988, Psychological Testing

10.1007/BF02293814

10.3102/10769986025003253

Beckerman H., 1996, A Criterion for Stability of the Motor Function of the Lower Extremity in Stroke Patients Using the Fugl–Meyer Assessment Scale, Scandinavian Journal of Rehabilitation Medicine, 28, 3

Bergstrom B. A., 1996, Computerized Adaptive Testing for the National Certification Examination, Journal of American Association of Nurse Anesthetists, 64, 119

Birnbaum A., 1968, Statistical Theories of Mental Test Scores

10.1023/A:1026123400242

10.1037/h0094142

10.1023/A:1008826408328

Cella D. F., 1996, Quality of Life and Pharmacoeconomics in Clinical Trials, 705

10.1053/apmr.2001.26622

10.1097/00005650-200307000-00006

10.1177/014662169501900103

Fields F. A., 1992, Computerized Adaptive Testing for NCLEX‐PN, Journal of Practical Nursing, 42, 8

10.1016/S0003-9993(95)80020-4

10.1177/014662168901300404

10.1097/00005650-200209000-00010

Hahn E. A., 2003, Quality of Life Assessment for Low Literacy Latinos, Journal of Oncology Management, 12, 9

10.1002/pon.719

10.1007/978-94-017-1988-9

10.2307/1164972

10.1007/BF02294462

10.1016/0306-4603(95)00060-7

10.1111/j.1530-0277.1994.tb01433.x

10.2519/jospt.1996.24.1.11

Merriam‐Webster Inc.2003. “Merriam‐Webster Online: The Language Center” [accessed June 6 2003]. Available athttp://www.m‐w.com/home.htm

Lippitt S. B., 1993, The Shoulder: A Balance of Mobility and Stability, 501

10.1007/BF02296272

McHorney C. A., 2000, Equating Health Status Measures with Item Response Theory, Medical Care, 38, II43, 10.1097/00005650-200009002-00008

10.1177/014662169201600206

10.1111/j.1745-3984.1994.tb00432.x

Rasch G., 1960, Probabilistic Models for Some Intelligence and Attainment Tests

10.1177/014662168500900409

10.1177/107319110000700404

10.1016/S0002-8223(95)00352-5

Samejima F., 1969, Estimation of Latent Ability Using a Response Pattern of Graded Scores, Psychometrika, 17

10.1007/BF02294821

10.1007/BF02295289

10.1016/S0749-3797(01)00362-2

10.1097/00002060-200109000-00006

10.1177/0013164493053003022

10.1111/j.1745-3984.1997.tb00506.x

Wainer H., 1990, Computerized Adaptive Testing: A Primer

10.1037/0022-3514.57.6.1051

Ware J. E., 2000, Practical Implications of Item Response Theory and Computerized Adaptive Testing, Medical Care, 38, II73

Weiss D. J.2003. “Polytomous CAT.” [Written Communication March 12 2003.]

Wolfe E. W., 2000, Equating and Item Banking with the Rasch Model, Journal of Applied Measurement, 1, 409

Wright B. D., 1982, Rating Scale Analysis

Thông tin
Thông tin xuất bản

Health Services Research

Tập 40 Số 5p2

1694-1711

Thông tin tác giả