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Table 4 Correlations between age, sex, and different measures of handedness in the twin sample (lower triangle) and in the singleton sample (upper triangle)

From: Prevalence and heritability of handedness in a Hong Kong Chinese twin and singleton sample

 

Age

Sex

Writing hand

Drawing hand

EHI

EHI2

PegQ

PegQ2

Age

 

.05

.02

.04

.07

.08

−.06

.02

Sex

.01

 

.03

−.03

.08

.02

.03

.08

Writing handa

.00

.04

 

.62**

.69**

.73**

.40**

.34**

Drawing hand a

−.03

.05

.71**

 

.67**

.66**

.29**

.24**

EHI

−.02

.05

.80**

.72**

 

.81**

.42**

.35**

EHI2a

−.07

.02

.85**

.71**

.84**

 

.44**

.39**

PegQ

.08

.02

.44**

.37**

.44**

.44**

 

.70**

PegQ2 a

.08

−.03

.46**

.34**

.43**

.44**

.67**

 
  1. Measures marked with a are binary handedness variables with 0 = NRH and 1 = RH;
  2. Sex is coded as 0 = male, 1 = female; * p < .05, ** p < .01
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BMC Psychology

ISSN: 2050-7283

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