Model

χ2

p

df

χ2/df

GFI

RMSEA

AIC

BIC

Model 1 (global factor only)

211.55

.000

54

3.92

.773

.138

295.56

332.59

Model 2 (global + domain-general factors)

107.17

.000

53

2.02

.887

.081

157.12

233.20

Model 3 (global + domain-specific factors)

73.62

.017

50

1.47

.928

.055

129.62

214.83

Full hierarchical model (global + domain-general + domain-specific factors)

55.67

.303

51

1.09

.956

.024

109.67

191.84