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Table 1 Confirmatory factor analyses of the BDI-II: comparison of models by MLE method. N = 624

From: Dimensional and hierarchical models of depression using the Beck Depression Inventory-II in an Arab college student sample

Models

CMNI/DF1

GFI2

AGFI3

TLI: NNFI4

CFI5

PCFI6

RMSEA7

AIC8

Regression weights: P values

Standardized regression weights

3-factor: Fig 1

2.11

0.94

0.93

0.89

0.90

0.79

0.042

481.7

All significant at

0.001, 2-tailed

For BDI 19: 0.14

Others: 0.27- 0.60. All covariance paths b/w factors: P <0.001

Higher order for 3-factor

2.28

0.94

0.92

0.87

0.89

0.79

0.045

514.1

All significant at 0.001, 2-tailed, except "concentration" (0.004)

BDI 19 = 0.14

Others: 0.26-0.59

Bifactor for 3-factor

2.10

0.95

0.93

0.89

0.91

0.73

0.042

479.4

For general factor, all P < 0.001; for other factors, P >0.05

For general factor:

BDI 19 = 0.16

Others: 0.25-0.59

SA-C: Fig 2

2.16

0.94

0.93

0.88

0.89

0.80

0.043

492.7

All significant at

0.001, 2-tailed

BDI 19 = 0.14

Others: 0.27 -0.60

CA-S: Fig 3

2.3

0.94

0.92

0.88

0.89

0.79

0.045

510.4

All P <0.001, except 'concentration"

(0.002)

BDI 19 = 0.16

Others: 0.30-0.60

Higher order for SA-C and CA-S(Fig 4)

2.28

0.94

0.92

0.87

0.89

0.79

0.045

514.1

All P < 0.001, except concentration (

0.14-0.59

Bifactor for SA-C

1.82

0.95

0.94

0.92

0.94

0.75

0.036

431.4

For general factor: P <0.001, except BDI 19 = 0.04. For other factors, mostly P > 0.05

General factor: BDI 19: 0.097

Others: 0.25-0.60

Bifactor for CA-S (Fig 5)

1.73

0.96

0.94

0.93

0.94

0.75

0.034

416.7

For general factor: P < 0.001, except BDI 19 = 0.02. For other factors, mostly P > 0.05

General factor: BDI 19: 0.14. Other items: 0.28-0.59

One-factor

2.28

0.94

0.92

0.87

0.89

0.79

0.045

514.1

All P < 0.001, except concentration (0.004)

BDI 19 = 0.14

Others: 0.28-0.59

Bahrain*

2.17

0.94

0.93

0.88

0.89

0.79

0.043

494.4

All P <0.001, except 'concentration" (0.003)

BDI 19 = 0.15

Others: 0.38-0.60. All covariance paths: P < 0.001

Dozois**

2.12

0.94

0.93

0.89

0.90

0.81

0.042

484.6

All P < 0.001, except 'concentration' (0.004)

BDI 19 = 0.14

Others = 0.27 -0.61

Covariance paths: P < 0.001

  1. Notes: 1CMIN/DF = Chi-square divided degrees of freedom; 2GFI = "goodness-of-fit" index; 3AGFI = Adjusted GFI; 4TLI = Tucker -Lewis Index or Non-normed fit index; 5CFI = comparative fit index; 6PCFI = Parsimony adjusted comparative fit index; 7RMSEA = root mean square error of estimation; 8AIC = Akaike information criterion.
  2. Standard values for the above fit indices are: GFI, AGFI, CFI, TLI: > 0.9
  3. For others: PCFI > 0.6; CMIN/DF < 5; RMSEA < 0.08. In comparing models, the one with lesser AIC indicates better fit to the data.
  4. * BDI items: 4,8,10-13,17 constituted the "overt emotional upset" domain
  5. ** BDI items 1-3, 5-9 and 13-14 loaded on the "C-A" factor; while items 4,10-12 and 15-21 loaded on the somatic-vegetative factor
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BMC Psychiatry

ISSN: 1471-244X

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