Table 3.

Standardized parameter estimates by confirmatory factor analysis of the TAS-20: Estimates of standardized regression weights

	2-factor				3-factor						4-factor
	Normative		Patient		Normative				Patient			Normative				Patient
item No.	DIDF	EOT	DIDF	EOT	DIF	DDF	EOT	DIF	DDF	EOT	DIF	DDF	EOT	NKI	DIF	DDF	EOT	NKI
1	0.70		0.74		0.70			0.74			0.69				0.74
3	0.47		0.46		0.47			0.46			0.47				0.46
6	0.64		0.70		0.65			0.71			0.65				0.70
7	0.65		0.60		0.67			0.62			0.67				0.62
9	0.68		0.72		0.69			0.72			0.69				0.72
13	0.74		0.67		0.74			0.68			0.74				0.68
14	0.58		0.59		0.59			0.60			0.59				0.60
2	0.56		0.67			0.68			0.75			0.67				0.73
4	0.38		0.44			0.50			0.52			0.63		0.30		0.63		0.30
11	0.44		0.49			0.58			0.56			0.58				0.57
12	0.36		0.36			0.45			0.44			0.45				0.45
17	0.24		0.31			0.32			0.38			0.33				0.38
5		0.41		0.48			0.41			0.48			0.47	0.31			0.53	0.39
8		0.30		0.40			0.30			0.40			0.67				0.65
10		0.51		0.49			0.51			0.49			0.41	0.51			0.48	0.56
15		0.11		0.13			0.11			0.14			0.28				0.31
16		0.14		0.12			0.14			0.13			0.18				0.18
18		0.42		0.25			0.42			0.26			0.25	0.50			0.21	0.33
19		0.66		0.53			0.66			0.53			0.50	0.69			0.50	0.61
20		0.24		0.17			0.24			0.16			0.33				0.31

All parameter estimates are statistically significant (p ~ 0). DIF = difficulty in identifying feelings, DDF = difficulty in describing feelings, EOT = externally oriented thinking