Table 1 Empirical coverage of 95% confidence intervals for the treatment group mean after multiple imputation by PMM
From: Multiple imputation by predictive mean matching in cluster-randomized trials
ICC | Cluster size | Clusters | PMM | PMM | PMM | PMM | PMM | PMM |
|---|---|---|---|---|---|---|---|---|
ρ | m | k | FE | dist | RE | draw | avg | IGN |
0.03 | 4 | 100 | 99.0 | 98.2 | 98.7 | 95.1 | 95.4 | 95.5 |
8 | 10 | 99.5 | 98.1 | 98.1 | 97.5 | 96.7 | 97.1 | |
20 | 98.4 | 96.6 | 96.8 | 94.9 | 94.9 | 95.2 | ||
40 | 98.9 | 97.8 | 97.5 | 95.6 | 95.3 | 95.4 | ||
40 | 10 | 98.9 | 98.4 | 98.9 | 96.1 | 94.9 | 94.4 | |
20 | 98.3 | 98.0 | 98.1 | 94.5 | 92.3 | 91.7 | ||
40 | 98.0 | 98.0 | 98.2 | 94.0 | 92.1 | 91.0 | ||
400 | 4 | 97.5 | 97.3 | 98.1 | 96.2 | 95.5 | 89.9 | |
0.08 | 4 | 100 | 98.7 | 98.6 | 98.2 | 94.9 | 94.8 | 95.0 |
8 | 10 | 98.9 | 97.5 | 98.0 | 96.7 | 95.0 | 96.0 | |
20 | 97.9 | 97.1 | 96.9 | 93.9 | 92.3 | 93.6 | ||
40 | 98.9 | 98.7 | 98.2 | 95.0 | 93.7 | 94.2 | ||
40 | 10 | 97.9 | 97.7 | 98.7 | 95.3 | 93.9 | 90.2 | |
20 | 97.6 | 97.4 | 97.6 | 93.8 | 92.8 | 86.9 | ||
40 | 97.5 | 97.3 | 97.8 | 94.2 | 92.5 | 88.0 | ||
400 | 4 | 96.7 | 96.6 | 97.6 | 96.2 | 96.2 | 86.1 |