AMA

n = 31 M (SD)

OLMA

n = 41 M (SD)

NMA

n = 22 M (SD)

F(2, 91)

Raven’s Colored Progressive Matrices

12.87

(3.24)

13.56

(3.12)

13.00

(2.89)

0.70

Age in months

57.2

(7.81)

57.1

(8.52)

53.5

(7.54)

0.18

Mother educationa

1.83

(0.37)

1.90

(0.30)

1.86

(0.35)

0.77

Gender

Male

15

(48.4%)

19

(46.5%)

12

(54.5%)

Female

16

(51.6%)

22

(53.5%)

10

(45.5%)