Table 2. Results of the multilevel meta-analyses on the relationship between dominance rank and bib size in male house sparrows.
Additionally, the results of the Egger’s regression tests are shown. Estimates are presented as standardized effect sizes using Fisher’s transformation (Zr). Both meta 1 and meta 2 include published and unpublished estimates, with meta 2 including two non-reported estimates assumed to be zero (see section ‘Meta-analyses’).
| Meta-analysis | K | Meta-analytic mean [95% CrI] |
I2population ID
[95% CrI] (%) |
I2study ID
[95% CrI] (%) |
I2overall
[95% CrI] (%) |
Egger’s regression [95% CrI] |
|---|---|---|---|---|---|---|
| meta 1 | 85 | 0.23 [−0.01,0.45] |
16 [0,48] |
21 [0,51] |
53 [33,73] |
−0.13 [−0.59,0.27] |
| meta 2 | 87 | 0.20 [−0.01,0.40] |
15 [0,46] |
20 [0,49] |
53 [34,74] |
−0.12 [−0.55,0.28] |
k = number of estimates; CrI = credible intervals; I2 = heterogeneity.