Table 1 Factors and their specific values explored in the simulation study
From: Explaining the variation in the attained power of a stepped-wedge trial with unequal cluster sizes
Factor | Values |
Number of clusters | 12, 24, 48 |
Number of cluster size groups | 2, 3 |
Distribution of clusters to cluster size groups | Equal (6S + 6 L, 12S + 12 L, 24S + 24 L, 4S + 4 M + 4 L, 8S + 8 M + 8 L, 16S + 16 M + 16 L), Unequal (9S + 3 L, 18S + 6 L, 36S + 12 L, 6S + 4 M + 2 L, 12S + 8 M + 4 L, 24S + 16 M + 8 L) |
ICC | 0.01, 0.05, 0.1 |
CV | 0.4, 0.7, 1.0a, 1.3a |