Skip to main content

Table 2 Narcolepsy severity scale items-Factor analysis

From: Chinese version of narcolepsy severity scale: a validation study

Items

Communlities

Factors

 

I

II

III

1

0.334

 

0.457

 

2

0.520

 

0.711

 

3

0.776

 

0.845

 

4

0.515

 

0.573

 

5

0.478

 

0.412

 

6

0.368

 

0.600

 

7

0.257

 

0.462

 

Cronbach’ α

0.697

8

0.727

  

0.837

9

0.691

  

0.794

10

0.563

  

0.629

15

0.296

  

0.379

Cronbach’ α

0.740

11

0.630

0.775

  

12

0.759

0.859

  

13

0.596

0.767

  

14

0.692

0.814

  

Cronbach’ α

0.817

KMOa measure of sampling adequacy

0.728

Percentage of cumulative variance explained

0.55

  1. aKMO Kaiser-Meyer-Olkin