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Table 4 Estimated mean value of the standardized correlation coefficient, \({\overline{Z} }_{r}\), along with its standard error and 95% confidence intervals. We re-computed the meta-analysis for different post hoc subsets of the data: All eligible effects, removal of effects from blue tit analyses that contained a pair of highly collinear predictor variables, removal of effects from analysis teams that received at least one peer rating of “deeply flawed and unpublishable”, removal of any effects from analysis teams that received at least one peer rating of either “deeply flawed and unpublishable” or “publishable with major revisions”, inclusion of only effects from analysis teams that included at least one member who rated themselves as “highly proficient” or “expert” at conducting statistical analyses in their research area

From: Same data, different analysts: variation in effect sizes due to analytical decisions in ecology and evolutionary biology

Dataset

\(\widehat{\mu }\)

\(SE[\widehat{\mu ]}\)

95% CI

Statistic

p

All analyses

 Eucalyptus

−0.09

0.06

[−0.22,0.03]

−1.47

0.14

 blue tit

−0.35

0.03

[−0.41,−0.29]

−11.02

<0.001

Blue tit analyses containing highly collinear predictors removed

 blue tit

−0.36

0.03

[−0.42,−0.29]

−10.97

<0.001

All analyses, outliers removed

 Eucalyptus

−0.03

0.01

[−0.06,0.00]

−2.23

0.026

 blue tit

−0.36

0.03

[−0.42,−0.30]

−11.48

<0.001

Analyses receiving at least one “Unpublishable” rating removed

 Eucalyptus

−0.02

0.02

[−0.07,0.02]

−1.15

0.3

 blue tit

−0.36

0.03

[−0.43,−0.30]

−10.82

<0.001

Analyses receiving at least one “Unpublishable” and or “Major Revisions” rating removed

 Eucalyptus

−0.04

0.05

[−0.15,0.07]

−0.77

0.4

 blue tit

−0.37

0.07

[−0.51,−0.23]

−5.34

<0.001

Analyses from teams with highly proficient or expert data analysts

 Eucalyptus

−0.17

0.13

[−0.43,0.10]

−1.24

0.2

 blue tit

−0.36

0.04

[−0.44,−0.28]

−8.93

<0.001