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Table 3 SIPSO Rasch analysis results

From: The Subjective Index for Physical and Social Outcome (SIPSO) in Stroke: investigation of its subscale structure

Analysis number

Item fit residual

Person fit residual

χ2 interaction

PSI

Unidimensionality Independent t-test (95% CI)

 

Mean

SD

Mean

SD

Value (df)

P

  

Physical Integration

        

1

0.145

1.271

-0.319

0.891

50.96

(30)

0.009

0.93

2.9% (0.7 to 5.2)

2

0.033

1.544

-0.351

0.881

37.87

(24)

0.036

0.93

1.6% (-0.6 to 3.8)

Social Integration

        

3

0.340

1.787

-0.329

1.059

49.70

(30)

0.013

0.82

1.7% (-0.4 to 3.7)

4

0.188

2.824

-0.365

1.016

38.02

(24)

0.035

0.83

2.1% (0.1 to 4.2)

5

-0.097

2.413

-0.527

0.891

8.98

(12)

0.705

0.85

2.2% (0.1 to 4.3)

Total SIPSO

        

6

-0.109

3.097

-0.310

1.198

179.62

(60)

<0.001

0.91

16.8% (14.8 to 18.9)

7

-0.261

2.801

-0.305

1.198

171.25

(60)

<0.001

0.91

14.5% (12.4 to 16.6)

8

-0.595

3.181

-0.382

1.064

158.19

(48)

<0.001

0.90

9.2% (7.1 to 11.3)

9

-0.328

2.619

-0.341

0.946

118.85

(36)

<0.001

0.92

4.7% (2.5 to 6.9)

10

0.115

1.323

-0.313

0.871

58.49

(30)

0.001

0.92

3.5% (1.3 to 5.7)

11

-0.041

1.529

-0.353

0.863

41.12

(24)

0.016

0.92

2.7% (0.5 to 4.9)