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Table 3 Percentage of variance explained by the general and specific factors, errors, and per items, according to the bifactor model (Model D)

From: Revisiting the dimensional structure of the Edinburgh Postnatal Depression Scale (EPDS): empirical evidence for a general factor

Item

Specific factors

g-factor

Error

 

1

2

3

  

i1

3.0

  

6.0

1.2

i2

3.2

  

5.4

1.4

i6

.2

  

4.5

5.1

i3

 

.8

 

3.5

5.7

i4

 

2.7

 

3.4

3.6

i5

 

1.2

 

5.2

3.3

i7

  

.37

8.5

1.3

i8

  

.77

7.9

1.4

i9

  

2.6

7.7

.5

i10

  

.38

5.8

3.4

Sub-total

6.4

4.7

4.1

  

Total

 

15.2

 

57.9

26.9

  1. Note: all values above are %.
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BMC Medical Research Methodology

ISSN: 1471-2288

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