The Construct of the Schizophrenia Quality of Life Scale Revision 4 for the Population of Taiwan

Table 2

Model comparisons.

	Model number
	1	2	3	4	5
(df)	860.108 (494)	567.519 (376)	544.993 (374)	756.583 (356)	675.982 (368)
CFI	0.934	0.963	0.967	0.928	0.945
TLI	0.929	0.960	0.964	0.918	0.939
RMSEA	0.087	0.072	0.068	0.107	0.092
SRMR	0.090	0.073	0.072	0.132	0.074
AIC	994.108	685.519	666.993	914.583	809.982
ECVI	10.041	6.924	6.737	9.238	8.182

Model 1: two correlated factors (psychosocial and vitality) with 33 items.
Model 2: two correlated factors (psychosocial and vitality) with 29 items.
Model 3: three correlated factors (psychosocial, physical, and vitality) with 29 items.
Model 4: seven correlated factors (relationships with others, loneliness, exhaustion, depressed thinking, somatic concern, vitality, and worry) with 29 items.
Model 5: seven correlated factors (relationships with others, loneliness, exhaustion, depressed thinking, somatic concern, vitality, and worry) underlying three correlated dimensions (psychosocial, physical, and vitality) with 29 items.
CFI = comparative fit index; TLI = Tucker-Lewis index; RMSEA = root mean square error of approximation; SRMR = standardized root mean square residual; AIC = Akaike’s information criterion; ECVI = expected cross-validation index.