Table 5

Intelligence (Effects of age, status, gender, and Centre)

Age effects

Centre effects°

Gender effects°

Status effects°





N

rho

p

Q

Crit

Sig

Q

Crit

Sig

Q

Crit

Sig






IQ

1828

-0.106

0.000

91.7

23.4

***

4.49

4.19

*

7.5

4.2

*

V §

1844

-0.137

0.000

136.2

21.7

***

8.58

4.01

**

10.9

4.0

**

S §

1788

-0.117

0.000

86.9

21.6

***

3.76

4.17

5.1

4.2

*

PC §

1788

-0.060

0.012

110.6

21.5

***

8.78

4.03

**

0.7

4.0

BD §

1845

-0.007

0.777

30.5

19.9

**

2.67

3.97

7.7

4.0

**

DS §

1820

0.002

0.918

42.7

21.7

***

0.41

4.03

16.3

4.0

***


IQ Prorated IQ

V Vocabulary

S Simliarities

PC Picture Completion

BD Block Design

DS Digit Span

°Three-way analysis; dependent scores are

adjusted for age (residuals of linear regression)

§ Analyses with collapsed israel samples

Q Test statistic of robust 3-way effects

Crit α = .05 critical value

Sig Two sided α-level

* p < 0.05

** p < .0.01

*** p < .0.001

Müller et al. BMC Psychiatry 2011 11:55   doi:10.1186/1471-244X-11-55

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