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Table 6 Measurement invariance across gender, class standing, family income and parental educational level

From: Psychometric properties and measurement invariance of the 7-item game addiction scale (GAS) among Chinese college students

Model

 

Model Fit Indices

χ2 (df)

Δχ2 (Δdf)

CFI

ΔCFI

RMSEA

ΔRMSEA

Gender

Configural

14.876 (14)

 

0.999

 

0.008

 

Weak factorial

29.786 (20)

14.910 (6)

0.986

−0.013

0.022

0.014

Strict factorial

120.542 (35)

105.666 (21)

0.879

−0.120

0.049

0.041

Class standing

Configural

19.403 (21)

 

1.000

 

0.000

 

Weak factorial

45.532 (33)

26.129 (12)

0.984

−0.016

0.019

0.019

Strict factorial

92.212 (63)

72.809 (42)

0.963

−0.037

0.021

0.021

Family income

Configural

55.048 (49)

 

0.993

 

0.011

 

Weak factorial

76.808 (61)

21.76 (12)

0.982

−0.011

0.016

0.005

Strict factorial

133.169 (91)

78.121 (42)

0.951

−0.042

0.021

0.010

Education(F)

Configural

21.631 (21)

 

0.999

 

0.005

 

Weak factorial

40.759 (33)

19.128 (12)

0.990

−0.009

0.015

0.010

Strict factorial

71.74 (63)

50.109 (42)

0.989

−0.010

0.012

0.007

Education(M)

Configural

29.091 (21)

 

0.990

 

0.019

 

Weak factorial

35.77 (33)

6.679 (12)

0.997

0.007

0.009

−0.010

Strict factorial

78.222 (63)

49.131 (42)

0.981

−0.009

0.015

−0.004