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Table 2 Overall Rasch model fit statistics

From: Variability in depression prevalence in early rheumatoid arthritis: a comparison of the CES-D and HAD-D Scales

Scale

χ2

p

Item

Fit Residual mean (SD)

Person

Fit Residual mean (SD)

20-item CES-D

314.15

0.00

-0.14 (2.59)

-0.10 (1.03)

13-item CES-D

37.10

0.07

-0.40 (1.08)

-0.36 (1.11)

7-item HADS-D

16.78

0.27

-0.23 (0.61)

-0.29 (0.77)

CES-D13+HADS-D

58.37

0.03

-0.14 (0.85)

-0.27 (1.16)