birdegg_ssd.8: birdegg_ssd.8 data

In daniel1noble/metaAidR: Functions and Data for Aiding Meta-analyses in Ecology and Evolution

birdegg_ssd.8 data

Description

Data set on bird egg sexual size dimorphism meta-analysis. Data was taken from Rutkowska et al. (2014). In this study more than one egg came from the same study which introduces non-independence in the data (i.e. correlated structure). As a sensitivity analysis Rutkowska et al. (2014) used an effective sample size proposed by Higgins and Green (2009), which requires an estimate of the intra-class correlation coefficient (ICC) in the calculation of effect sizes. In this case, an ICC estimate of 0.8 was used.

Format

A raw csv file containing the following columns and descriptors

1. animal: species Latin name

2. Spp: species common name

3. Lndim: logaritm of adult mass dimorphism

4. Measure: method of eggs measurments

5. Neggs: number of eggs

6. Nclutches: number of clutches

7. ESr: effect size, correlation

8. Type: how the effect size was calculated: row data/inferential statistics

9. StudyID: reference

10. Year: year of publication

11. D: design effect

12. EN: effective sample size

13. Zr: Fisher's Z

14. VZr: sampling variance

References

Rutkowska, J., Dubiec, A. and Nakgawa, S. (2014). All eggs are made equal: a meta-analysis of egg sexual size dimorphism. Journal of Evolutionary Biology, 27:153-160

Higgins, J.P.T. and Green, S. (2009). Cochran handbook for systematic reviews and interventions. Wiley-Blackwell. pgs 412-414.

daniel1noble/metaAidR documentation built on Oct. 14, 2023, 3:23 p.m.