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Table 6 DIF class specification for the 3 groups on the social items

From: The Imperforate Anus Psychosocial Questionnaire (IAPSQ): Its construction and psychometric properties

PERSON

SUMMARY DIF

  

ITEM

Groups

CHI-SQUARE

D.F.

PROB.

Number Name

3

.8312

2

.6581

1 SCHOO4

3

1.7952

2

.4039

2 TEACH5

3

1.1539

2

.5588

3 FRIEND6

3

6.5071

2

.0378

4 GYMN7

3

3.9308

2

.1377

5 SHOW8

3

2.1503

2

.3376

6 BREAK9

3

.2749

2

.8728

7 ACTI10

3

3.4232

2

.1778

8 FRIEN28

3

1.9843

2

.3671

9 DECI29

3

4.5712

2

.0998

10 TEAS30

2*

3.1456

1

.0761

11 BULLY31

0

.0000

0

1.0000

12 TOGETHER

  1. One item, differently scored by the groups, is in boldface
  2. * The IA children are not included, due to zero variance.
  3. All children answered '5'
  4. Total Chi2 = 29.8 d.f. = 21, p = 0.096