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Table 6 Exploratory and parallel factor analysis based on principal components

From: DEMQOL and DEMQOL-Proxy: a Rasch analysis

Item

Real-data eigenvalues

Mean of random eigenvalues

95 percentile of random eigenvalues

1

10.79144a

1.36547

1.41127

2

2.66292a

1.31325

1.35140

3

1.58357a

1.27487

1.30805

4

1.40969a

1.24164

1.26837

5

1.14704

1.21272

1.23873

6

0.93171

1.18559

1.20844

7

0.78525

1.15805

1.18129

8

0.72128

1.13369

1.15522

9

0.63767

1.11051

1.13066

10

0.59202

1.08769

1.10588

11

0.55460

1.06566

1.08420

12

0.53815

1.04397

1.06361

13

0.50040

1.02312

1.04151

14

0.48372

1.00303

1.02130

15

0.46846

0.98264

1.00091

16

0.45968

0.96292

0.98064

17

0.43176

0.94208

0.96037

18

0.39103

0.92086

0.93999

19

0.37195

0.90017

0.91964

20

0.35894

0.87983

0.89876

21

0.34018

0.85861

0.87875

22

0.32575

0.83670

0.85715

23

0.32086

0.81477

0.83436

24

0.28711

0.79187

0.81346

25

0.26326

0.76750

0.78862

26

0.25183

0.74040

0.76553

27

0.20604

0.71049

0.73984

28

0.18368

0.67193

0.70620

  1. aAdvised number of dimensions: 4