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Table 2 Category intercept estimates for the four-dimensional model

From: Measurement and control of bias in patient reported outcomes using multidimensional item response theory

  

Category

 

Trait

Item

1

2

3

4

5

 

1

–0.971

1.583

0.385

1.153

–2.150

 

2

–0.833

2.262

1.258

0.971

–3.659

 

3

–1.281

2.457

0.978

1.224

–3.377

 

4

–0.551

2.607

0.721

0.675

–3.452

 

5

–0.571

3.092

1.318

0.762

–4.600

Neuroticism

6

0.685

2.702

0.507

0.524

–4.417

 

7

–2.016

2.366

1.127

1.496

–2.972

 

8

–0.251

3.304

1.193

0.208

–4.454

 

9

–0.501

3.390

1.504

0.936

–5.329

 

10

–1.103

2.944

1.023

1.044

–3.908

 

11

0.686

3.540

1.151

0.611

–5.988

 

12

0.044

3.109

0.753

0.715

–4.621

 

13

–3.843

–1.539

–0.389

3.514

2.258

 

14

–3.570

–0.478

0.490

2.829

0.730

 

15

–4.542

0.997

1.349

2.691

–0.495

 

16

–4.194

0.074

0.799

3.059

0.262

 

17

–3.719

0.291

0.772

2.556

0.101

Agreeableness

18

–3.543

1.344

0.754

2.465

–1.019

 

19

–4.470

–0.202

1.264

3.847

–0.439

 

20

–1.189

0.118

2.103

-1.032

0.000

 

21

–3.089

1.051

1.045

2.270

–1.277

 

22

–3.822

–1.276

3.632

1.466

0.000

 

23

–4.029

0.384

1.266

2.982

–0.604

 

24

–5.305

0.181

0.832

3.319

0.973

 

25

–3.710

0.265

0.776

2.418

0.252

 

26

–3.815

0.122

0.505

2.964

0.223

 

27

–3.561

0.686

0.800

2.471

–0.396

 

28

–5.826

–1.564

–0.046

4.588

2.848

 

29

–4.776

0.274

1.368

3.085

0.049

Conscientiousness

30

–4.359

0.869

0.916

2.996

–0.421

 

31

–6.060

–0.827

0.893

4.240

1.755

 

32

–5.423

–1.183

0.471

4.133

2.002

 

33

–4.715

1.497

1.095

2.918

–0.795

 

34

–6.140

0.072

1.711

3.717

0.639

 

35

–4.710

0.606

0.894

3.173

0.038

 

36

–5.167

0.626

1.692

3.104

–0.256

  1. Note: Boldface numbers indicate the highest positive intercept values per item category