Item bias on the geriatric depression scale (GDS): investigating the quality and generalizability of GDS on Chinese and Korean community-dwelling elderly population

Table 2 The dimensionality test of GDS on Chinese and Korean elderly

Model	Criterion	China	Korea	All
One-dimension Yesavage et al. [34]	Final Deviance	8922.03	5820.61	15201.88
One-dimension Yesavage et al. [34]	AIC	8984.03	5882.61	15263.88
Two-dimension Ertan and Eker [39]	Final Deviance	8889.48	5701.98	15066.04
Two-dimension Ertan and Eker [39]	AIC	8955.48	5767.98	15132.04
Three-dimension Pocinho et al. [45]	Final Deviance	8658.92	5573.19	14723.43
Three-dimension Pocinho et al. [45]	AIC	8730.92	5645.19	14795.43
Four dimension Haavisto and Boron [42]	Final Deviance	8159.10	5399.41	14028.57
Four dimension Haavisto and Boron [42]	AIC	8235.10	5475.41	14104.57
Four-dimension Ganguli et al. [41]	Final Deviance	8889.05	5709.23	15052.39
Four-dimension Ganguli et al. [41]	AIC	8969.05	5789.23	15132.39
Five-dimension Galeoto et al. [40]	Final Deviance	8840.74	5667.89	15006.81
Five-dimension Galeoto et al. [40]	AIC	8930.74	5757.89	15096.81
Five-dimension Kim et al. [43]	Final Deviance	8633.65	5313.70	14155.39
Five-dimension Kim et al. [43]	AIC	8723.65	5401.70	14243.39
Five-dimension Sheikh et al. [46]	Final Deviance	8868.15	5661.04	15037.96
Five-dimension Sheikh et al. [46]	AIC	8958.15	5751.04	15127.96
Six-dimension Parmelee, Lawton, and Katz [44]	Final Deviance	8657.47	5603.35	14782.20
Six-dimension Parmelee, Lawton, and Katz [44]	AIC	8759.47	5705.35	14884.20

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