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Table 2 Influence of TIV in the observed differences and similarities in the raw and in the PCP datasets

From: Univariate and multivariate sex differences and similarities in gray matter volume within essential language-processing areas

Raw dataset

PCP-dataset

Statistic

rho

p value

fdr-

p value

Statistic

rho

p value

fdr-

p value

Quantile

   

Quantile

   

0.1

0.511

0.003

0.004

0.1

0.273

0.024

0.221

0.2

0.589

p < 0.001

0.002

0.2

0.049

0.126

0.283

0.3

0.612

p < 0.001

0.002

0.3

0.046

0.173

0.283

0.4

0.631

0.001

0.002

0.4

0.073

0.189

0.283

0.5

0.616

p < 0.001

0.002

0.5

0.030

0.352

0.352

0.6

0.653

p < 0.001

0.002

0.6

0.036

0.344

0.352

0.7

0.593

0.002

0.003

0.7

0.009

0.334

0.352

0.8

0.573

0.004

0.005

0.8

0.123

0.094

0.282

0.9

0.120

0.120

0.120

0.9

0.337

0.071

0.282

Cliff’s delta

0.697

0.001

0.001

Cliff’s delta

− 0.001

0.996

0.996

Cohen’s U3

0.671

0.002

0.002

Cohen’s U3

− 0.053

0.836

0.836

Overlap

-0.686

0.002

0.002

Overlap

− 0.179

0.478

0.478

  1. Spearman’s rho correlations were calculated between the proportion of variance explained by TIV (R2) and the estimates of the sex differences/similarities (differences at each decile value, Cliff’s delta, Cohen’s U3, and percent of overlap) obtained in the raw and in the PCP dataset