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| Titel: |
Comparative performance of three statistical tests of homogeneity for sparse i x j contingency tables |
| Auteur: |
Parshall, Cynthia G. Kromrey, Jeffrey D. Dailey, Ronald |
| Verschenen in: |
Communications in statistics |
| Paginering: | Jaargang 28 (1999) nr. 1 pagina's 275-289 |
| Jaar: |
1999 |
| Inhoud: |
The Type I error rates and statistical power of three tests of homogeneity of variance for sparse I × J contingency tables were investigated in a Monte Carlo study. The Pearson chi-square, likelihood ratio chi-square, and the Read and Cressie power-divergence statistic with λ = 2/3 were compared under a variety of table dimensions, sample sizes, marginal distributions, and effect sizes. The results suggested that, for small samples, the Pearson chi-square evidenced power advantages in large tables, while the power-divergence statistic was more powerful in small tables. The power estimates for these tests converged with large samples. The likelihood ratio chi-square showed excessively liberal Type I error rates and was not recommended for the analysis of sparse tables. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 9 van 19 gevonden artikelen
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