Table 1.

Standardized Factor Loadings and Reliabilities (ω) of Scales

Scale	Item Content	Time 1	Time 2	Time 3
Sleep quality	Sleep quality	.77	.74	.77
	Sleep time	.72	.69	.72
	Sleep efficiency	.61	.58	.61
	Sleep disorder	.63	.60	.63
Anxiety	I feel nervous or in pain	.74	.73	.73
	I feel a little scared, as if I felt that something terrible happened	.77	.76	.77
	My heart is full of troubles	.79	.78	.79
	I can sit comfortably and easily	.72	.71	.72
	I feel a trembling fear	.77	.77	.77
	I am a little restless, as if I feel that I have to be active	.65	.65	.65
	I suddenly have a fear	.77	.77	.77
Depression	I am still interested in things that I have been interested in the past	.62	.65	.65
	I can laugh and see the interesting side of things	.65	.69	.69
	I am happy	.75	.78	.79
	I feel that people seem to be dull	.60	.63	.63
	I lost interest in my appearance (dressing myself)	.67	.70	.70
	I am happy with the future	.56	.59	.59
	I can enjoy a good book or a good radio or TV show	.62	.65	.65

Note. Scores of some items are reverse coded to reflect anxiety and depression. Scale reliabilities (ω) were .78, .75, and .78 for sleep quality, .90, .89, and .89 for anxiety, and .83, .85, and .85 for depression, respectively, at three measurements.