Table 2.

Internal consistency of the Korea MEQ (N=91)

Item number	Mean	SD	Corrected item-total correlation	Chronbach's α if item deleted
1	3.77	0.85	.45	.76
2	3.14	0.68	.07	.78
3	2.67	0.92	.35	.76
4	2.49	0.91	.56	.75
5	2.70	0.76	.52	.75
6	1.86	0.83	.29	.76
7	2.36	0.75	.49	.75
8	2.33	0.91	.37	.76
9	2.93	0.95	.48	.75
10	3.29	1.03	.04	.78
11	4.20	1.78	.59	.74
12	1.53	1.29	.08	.78
13	2.29	1.04	.26	.77
14	2.33	0.97	.09	.78
15	3.01	0.92	.43	.76
16	1.87	0.82	.14	.77
17	3.21	0.91	.38	.76
18	3.20	0.69	.53	.75
19	3.04	1.99	.60	.74
Total		Chronbach's α=.77

MEQ: Morningness-Eveningness Questionnaire