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Journal of Patient-Reported Outcomes

Table 4 Test for global homogeneity and global DIF in relation to covariates by dimension of alienation

From: Measurement of alienation among adolescents: construct validity of three scales on powerlessness, meaninglessness and social isolation

   

RM

GLLRM

Alienation dimension

Global homogeneity & DIF

Covariates

χ2

df

p

χ2

df

p

Powerlessness

 

Global homogeneity

 

37.7

5

< 0.001

13.1

17

0.728

 

Global DIF

Sex

28.4

5

< 0.001

14.3

15

0.506

  

Age group

30.6

5

< 0.001

11.0

15

0.756

  

SEP

55.3

30

< 0.01

118.9

102

0.121

  

Migration status

22.2

10

0.014

31.1

22

0.095

  

Physical inactivity

12.0

5

0.035

28.6

17

0.038

Meaninglessness

 

Global homogeneity

 

160.5

5

< 0.001

10.4

11

0.498

 

Global DIF

Sex

11.7

5

0.040

19.2

11

0.058

  

Age group

16.9

5

< 0.01

7.2

9

0.616

  

SEP

27.5

30

0.599

58.7

66

0.726

  

Migration status

10.2

10

0.426

19.3

22

0.627

  

Physical inactivity

3.3

5

0.659

11.4

11

0.409

Social isolation

 

Global homogeneity

 

77.2

9

< 0.001

17.9

31

0.970

 

Global DIF

Sex

92.1

9

< 0.001

29.0

15

0.016

  

Age group

16.4

9

0.678

30.0

27

0.315

  

SEP

54.6

54

0.453

175.3

186

0.702

  

Migration status

34.8

18

0.010

89.8

62

0.012

  

Physical inactivity

6.6

9

0.678

32.9

31

0.374

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