A longitudinal evaluation of the Center for Epidemiologic Studies-Depression scale (CES-D) in a Rheumatoid Arthritis Population using Rasch Analysis

Table 1 Final fit of the CES-D items to the Rasch model

CESD Item	CESD Item Name	Location	SE	Fit res.	DF	ChiSq.	DF	Prob.
1	Bothered	-0.184	0.119	-0.163	328.47	4.792	6	0.570797
3	Blues	0.311	0.118	-2.449	330.31	10.196	6	0.116651
5	Concentrate	-0.109	0.115	-0.336	330.31	5.601	6	0.469291
6	Depressed	-0.643	0.111	-2.608	326.64	8.055	6	0.23407
7	Effort	-1.371	0.111	0.959	330.31	7.324	6	0.291895
9	Failure	0.58	0.12	-0.487	330.31	1.726	6	0.943111
10	Tearful	-0.346	0.109	-2.755	329.39	10.839	6	0.093481
13	Talked less	-0.003	0.115	0.284	329.39	16.091	6	0.013276
14	Lonely	-0.507	0.105	-1.343	328.47	3.495	6	0.744636
15	Others unfriendly	1.574	0.151	-1.471	330.31	6.255	6	0.395291
17	Crying spells	0.142	0.112	-0.962	329.39	6.047	6	0.417915
19	Others dislike	1.177	0.137	1.6	330.31	13.248	6	0.039264
20	Not get going	-0.62	0.117	-0.589	329.39	3.695	6	0.717908

ISSN: 1477-7525