A jackknife test of homogeneity of variance with paired replicates data
- 101 Downloads
A nonparametric test of dispersion with paired replicates data is described which involves jackknifing logarithmic transformations of the ratio of variance estimates for the pre- and post-treatment populations. Results from a Monte Carlo simulation show that the test performs well underHo and has good power properties. Examples are given of applying the procedure on psychiatric data.
Key wordsjackknife test for paired replicates treatment effect
Unable to display preview. Download preview PDF.
- Bell, W. D., Rothstein, S. M., & Li, W.-K. An empirical study of some nonparametric tests for dispersion of correlated data. Manuscript submitted for publication, 1980.Google Scholar
- Arvesen, J. N. JackknifingU-Statistics.Annals of Mathematical Statistics, 1969,40, 2076–2100.Google Scholar
- Arvesen, J. N., & Schmitz, T. H. Robust procedures for variance component problems using the jackknife.Biometrics, 1970,26, 677–686.Google Scholar
- Hamilton, M. A rating scale for depression.The Journal of Neurology, Neurosurgery and Psychiatry, 1969,23, 56–62.Google Scholar
- Hollander, M., & Wolfe, D. A.Nonparametric statistical methods. New York: Wiley, 1973.Google Scholar
- Johnson, N. J. Modifiedt tests and confidence intervals for asymmetrical populations.Journal of the American Statistical Association, 1978,73, 536–544.Google Scholar
- Layard, M. W. Large sample tests for the equality of two covariance matrices.Annals of Mathematical Statistics, 1972,43, 123–141.Google Scholar
- Miller, R. G. Jackknifing variances.Annals of Mathematical Statistics, 1968,39, 567–582.Google Scholar
- Miller, R. G. The jackknife—a review.Biometrika, 1974,61, 1–15.Google Scholar
- Pitman, E. J. G. A note on normal correlation.Biometrika. 1939,31, 9–12.Google Scholar