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| Titel: |
A comparison of tests of homogeneity for sparse contingency tables |
| Auteur: |
Kraemer, Dale F. Woolson, Robert F. |
| Verschenen in: |
Communications in statistics |
| Paginering: | Jaargang 16 (1987) nr. 2 pagina's 465-483 |
| Jaar: |
1987 |
| Inhoud: |
Five tests of homogeneity for a 2x(k+l) contingency table are compared using Monte Carlo techniques. For these studiesit is assumed that k becomes large in such a way that thecontingency table is sparse for 2xk of the cells, but the sample size in two of the cells remains large. The test statistics studied are: the chi-square approximation to the Pearson test statistic, the chi-square approximation to the likelihood ratio statistic, the normal approximation to Zelterman's (1984)the normal approximation to Pearson's chi-square, and the normal approximation to the likelihood ratio statistic. For the range of parameters studied the chi-square approximation to Pearson's statistic performs consistently well with regard to its size and power. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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