Table 4. Characteristics, DIs and CRs for the items in the 20-item RS-C.

Item	Mean (SD)	Kurtosis	Skewness	High Resilience Group		Low Resilience Group		DI	CR
				Mean(SD)	PL	Mean(SD)	PL
1	3.46(0.97)	-0.97	-0.11	3.91(0.90)	0.79	3.31(1.06)	0.38	0.41	2.48
2	3.81(0.91)	0.79	-0.93	4.44(0.66)	0.91	3.16(0.95)	0.38	0.57	6.33
3	3.76(0.84)	0.69	-0.83	4.29(0.62)	0.91	3.21(0.89)	0.40	0.51	5.03
4	3.78(0.89)	0.85	-0.89	4.32(0.72)	0.91	3.09(0.95)	0.40	0.51	5.76
5	3.63(0.88)	-0.65	-0.13	4.38(0.69)	0.88	2.84(0.62)	0.12	0.76	9.40
6	3.55(0.96)	-0.63	-0.18	4.47(0.61)	0.94	2.78(0.70)	0.12	0.82	10.38
7	3.25(1.15)	-0.80	-0.39	3.76(0.98)	0.64	2.59(1.26)	0.34	0.30	4.17
8	2.64(1.03)	-0.19	0.30	3.29(1.00)	0.76	2.00(0.71)	0.25	0.51	6.06
9	2.76(1.01)	-0.76	0.24	3.35(0.84)	0.82	2.41(1.04)	0.31	0.51	5.06
10	2.68(1.00)	0.01	0.53	3.44(0.99)	0.82	2.13(0.55)	0.21	0.61	6.71
11	3.88(0.88)	1.12	-0.92	4.29(0.71)	0.91	3.66(0.90)	0.65	0.26	3.19
12	3.82(1.04)	-0.16	-0.62	4.29(0.90)	0.85	3.13(0.97)	0.34	0.53	5.05
13	3.53(1.02)	0.14	-0.59	4.18(0.71)	0.82	2.63(1.08)	0.15	0.67	7.24
14	3.90(1.02)	0.92	-0.99	4.59(0.60)	0.94	3.19(0.96)	0.40	0.54	7.10
15	3.42(0.96)	-0.54	-0.32	4.12(0.68)	0.88	3.03(0.74)	0.21	0.67	6.19
16	3.30(1.02)	-0.98	0.07	4.00(0.92)	0.76	2.53(0.80)	0.15	0.61	6.89
17	3.47(0.77)	-0.39	-0.37	3.82(0.62)	0.70	2.81(0.69)	0.15	0.55	6.23
18	3.61(0.88)	-0.56	-0.31	3.91(0.66)	0.73	3.06(0.98)	0.43	0.30	4.09
19	3.33(0.87)	-0.99	-0.30	3.88(0.64)	0.97	2.56(0.66)	0.09	0.88	8.19
20	3.35(0.91)	-0.46	-0.33	3.94(0.54)	0.82	2.63(0.90)	0.15	0.67	7.09

DI = discrimination index; CR = critical ratio; SD = standard deviation; PL = popular level.