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Statistical Methodology for the Concurrent Assessment of Interrater and Intrarater Reliability: Using Goniometric Measurements as an Example
Abstract
Statistical methodology for the concurrent assessment of interrater and intrarater reliability is presented. Application of the methodology is illustrated with an example of one therapist using two goniometers repeatedly to measure knee joint angles. Methods for estimating the coefficients, testing hypotheses, constructing confidence intervals, and computing sample size requirements are provided. In addition, the calculation and clinical interpretation of the standard error of measurement (SEM) are discussed. It is recommended that (1) when both interrater and intrarater reliability are being assessed, a repeated-measures design be used to take advantage of the increased precision gained by using all observations in the statistical analysis, and (2) appropriate statistical tests, confidence intervals, and SEMs always be used in conjunction with the estimated reliability coefficients.
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Citations
Cites
The Measurement of Observer Agreement for Categorical Data
Landis, J. R., & Koch, G. G. (1977) · Biometrics · doi:10.2307/2529310 · Cited by 81,148
Intraclass correlations: Uses in assessing rater reliability.
Shrout, P. E., & Fleiss, J. L. (1979) · Psychological Bulletin · doi:10.1037/0033-2909.86.2.420 · Cited by 24,532
Cited by
Measures of Reliability in Sports Medicine and Science
Hopkins, W. G. (2000) · Sports Medicine · doi:10.2165/00007256-200030010-00001 · Cited by 4,635
Responsiveness of the Numeric Pain Rating Scale in Patients with Low Back Pain
Childs, J. D., Piva, S. R., & Fritz, J. M. (2005) · Spine · doi:10.1097/01.brs.0000164099.92112.29 · Cited by 1,481
Three-dimensional ultrasound imaging
Fenster, A., Downey, D. B., & Cardinal, H. N. (2001) · Physics in Medicine and Biology · doi:10.1088/0031-9155/46/5/201 · Cited by 812
Reliability: what is it, and how is it measured?
Bruton, A., Conway, J. H., & Holgate, S. T. (2000) · Physiotherapy · doi:10.1016/s0031-9406(05)61211-4 · Cited by 763
The validity of upper-limb neurodynamic tests for detecting peripheral neuropathic pain.
Nee, R. J., Jull, G. A., Vicenzino, B., & Coppieters, M. W. (2012) · Journal of Orthopaedic & Sports Physical Therapy · doi:10.2519/jospt.2012.3988 · Cited by 171
Metadata
- Authors
- Eliasziw, M., Young, S. L., Woodbury, M. G., & Fryday-Field, K.
- Venue
- Physical Therapy
- Publisher
- Oxford University Press (OUP)
- Published
- 1994-08-01
- Volume
- 74
- Issue
- 8
- Pages
- 777-788
- ISSN
- 0031-9023 (ISSN-L)
- 1538-6724
- OpenAlex
- W2097419280
- Cited by
- 635
- References
- 2
- FWCI
- 5.19
- Type
- journal article
- Language
- en
- Open access
- closed
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- Eliasziw, M., Young, S. L., Woodbury, M. G., & Fryday-Field, K. (1994). Statistical Methodology for the Concurrent Assessment of Interrater and Intrarater Reliability: Using Goniometric Measurements as an Example. Physical Therapy. https://doi.org/10.1093/ptj/74.8.777
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