Table 3.

Individuals’ item fit statistics of the K7 scale

	Individuals’ items fit statistics of K7 scale
Items	Location	SE	Residual	χ2	P value
Feel nervous	−0.944	0.124	−0.224	8.78	0.067
Feel so nervous	0.139	0.123	−0.177	5.91	0.206
Feel hopeless	0.049	0.112	1.215	1.23	0.874
Feel restless or fidgety	−0.843	0.110	1.993	13.09	0.011
Feel so restless	−0.573	0.110	−0.743	3.58	0.466
Everything was an effort	1.645	0.115	−1.222	7.58	0.108
Feel so sad	0.528	0.117	1.095	4.39	0.356