References
- Bland, J. M. Altman D. G. (1986) Statistical methods for assessing agreement between two methods of clinical measurement, Lancet, 307–310.
- Bloqvist, N. (1974) On the relation between change and initial value, Journal American Statistical Association, 72, 746–749.
- British Standard Institute (1979 ) Precision of test methods 1: Guide for the determination of repeatability and reproducibility for a standard method by interlaboratory tests. BS 5497 part 1. BSI, London.
- Cicchetti, D. V. And Allison, T. (1971) A new procedure for assessing reliability of scoring EEG sleep recording, American Journal of EEG Technology, 11, 101–109.
- Cohen, J. (1960) A coefficient of agreement for nominal scales, Educational and Psychological Measurement, 20, 37–46.
- Cohen, J. (1988) Nominal scale agreement with provision for rescaled disagreement and partial credit, Psychological Bulletin, 70, 213–220.
- Fleiss, J. L. (1981) Statistical Methods for Rates and Proportions, Wiley, New York.
- Fleiss, J. L. (1986) Design and Analysis of Clinical Experiment, Wiley, New York.
- Fleiss, J. L. and Cohen, J. (1973) The equivalence of weighted kappa and the intra-class correlation coefficient as measures of reliability, Educational and Psychological Measurement, 33, 613–619.
- Healy, M. J. R. (1989) Measuring error, Statistics in Medicine, 8, 893–906.
- Kingman, A. (1986) A procedure for evaluating reliability of a gingivitis index, Journal of Clinical Periodontology, 13, 385–391.
- Landis, J. R. and Koch, G. G. (1977) The measurement of observer agreement for categorical data. Biometrics, 33, 159–174.
- Nuttal, V. M. and Davies, J. A. (1988) The capability of the 1983 Children’s Dental Health Survey in Scotland to predict fillings and extractions subsequently undertaken, Community Dental Health, 5, 355–363.
- Richmond, S. et al. (1992) The development of the PAR Index (Peer Assessment Rating): reliability and validity, European Journal of Orthodontics, 14, 125–139.
- Richmond, S., Shaw, W. G., O’Brien, K. D., Stephens, C. D., Roberts, C. T. and Andrews, M. (1994) Reliability of Professional judgements of orthodontic treatment need, British Dental Journal (in press).
- Siegel, S. and Castellan, N. J. (1988) Nonparametric Statistics for the Behavioral Sciences, McGraw Hill, New York.
- Shaw, W. C., et al. (1991) Quality control in orthodontic indices of treatment need and treatment standards, British Dental Journal, 170, 107–112.