Index Factor

Brazil norms

USA norms

Diff

r diff x age

VCI

109.30

101.40

7.90

0.47

PRI

109.00

102.70

6.30

0.54

WMI

105.70

100.10

5.60

−0.47

PSI

101.80

92.85

8.95

0.58

IQ Total

109.48

100.18

9.30

0.49

Type differences

VCI

PRI

WMI

PSI

1

12 (30.0%)

22 (55.0%)

32 (80.0%)

25 (62.5%)

2

3 (7.5%)

7 (17.5%)

2 (5.0%)

5 (12.5%)

3

23 (57.5%)

11 (27.5%)

6 (15.0%)

10 (25.0%)