Appendix 2—table 1. Results of two multilevel meta-analyses to test the relationship between dominance rank and bib size in male house sparrows based on published studies only.
Published 1 includes published effect sizes obtained from summary data, whereas published 2 includes published re-analysed effect sizes together with the remaining published effect sizes obtained from summary data. Additionally, the results of the Egger’s regressions are shown. Estimates are presented as standardized effect sizes using Fisher’s transformation (Zr). Credible intervals not overlapping zero are highlighted in bold.
| Meta-analysis | K | Meta-analytic mean [95% CrI] |
I2population ID
[95% CrI] (%) |
I2study ID
[95% CrI] (%) |
I2overall
[95% CrI] (%) |
Egger’s regression [95% CrI] |
|---|---|---|---|---|---|---|
| Published 1 | 20 |
0.45
[0.26,0.63] |
17 [0,51] |
17 [0,53] |
46 [15,78] |
0.42 [−0.73,1.48] |
| Published 2 | 53 |
0.40
[0.11,0.67] |
14 [0,46] |
13 [0,42] |
46 [17,72] |
−0.25 [−0.73,0.26] |
k = number of estimates; CrI = credible intervals; I2 = heterogeneity.