Confirmatory factor analysis of the Korean version of the short-form McGill pain questionnaire with chronic pain patients: a comparison of alternative models

Table 3 Model fit indices for SF-MPQ

Model	x ² ( df )	RMSEA	CFI	NFI	TLI	AIC	BIC
KSF-MPQ¹	126.88 (64)	.08	.95	.90	.94	180.88	262.17
Adjusted KSF-MPQ²	101.86 (63)	.06	.97	.92	.96	157.86	242.16
Single-factor	343.94 (90)	.14	.81	.76	.78	403.94	494.26
Adjusted Single-factor²	319.03 (89)	.13	.83	.78	.80	381.03	474.36
Melzack	202.94 (89)	.09	.92	.86	.90	264.94	358.27
Adjusted Melzack²	180.34 (88)	.08	.93	.88	.92	244.34	340.68
Wright³	204.11 (85)	.10	.91	.86	.89	274.11	379.49
Shin	259.62 (64)	.14	.83	.79	.79	313.62	394.90
Adjusted Shin⁴	198.69 (63)	.12	.88	.84	.85	254.69	338.99
Cassisi A	195.57 (62)	.12	.88	.85	.86	253.57	340.88
Adjusted Cassisi A⁵	189.40 (61)	.12	.89	.85	.86	249.40	339.72
Cassisi B	212.75 (84)	.10	.91	.85	.88	284.75	393.13
Adjusted Cassisi B²	191.42 (83)	.09	.92	.87	.90	265.42	376.81
Burckhardt	200.01 (87)	.09	.92	.86	.90	266.01	365.36
Adjusted Burckhardt²	176.14 (86)	.08	.93	.88	.92	244.14	346.50

¹KSF-MPQ: Korean version of Short-Form McGill Pain Questionnaire; ²Covariance between error terms for items 1, 8; ³The Wright model basically includes specified covariance between error terms for items 2, 3; 3, 4; 2, 4; and 8, 12 and thus, the Wright model was not adjusted in the present study; ⁴Covariance between error terms for items 14, 15; ⁵Covariance between error terms for items 12, 13; RMSEA: Root-Mean Square Error of Approximation; CFI: Comparative Fit Index; NFI: Normed Fit Index; TLI: Tucker-Lewis Index; AIC: Akaike Information Criteria; BIC: Bayesian Information Criteria.

ISSN: 1477-7525