Table 2.

Item analysis of SIS (N = 38).

Q.No.	Scale mean if item deleted	Scale variance if item deleted	Corrected item–total correlation	Cronbach's alpha if item deleted
Q.1	69.1842	175.235	0.488	0.886
Q.2	68.7632	179.267	0.625	0.884
Q.3	68.5526	180.957	0.380	0.889
Q.4	68.5263	174.148	0.630	0.882
Q.5	68.3947	175.813	0.606	0.883
Q.6	68.7368	178.091	0.488	0.886
Q.7	68.8947	178.908	0.494	0.886
Q.8	70.0263	201.161	-0.286	0.904
Q.9	68.3947	175.164	0.511	0.886
Q.10	68.8947	171.718	0.649	0.882
Q.11	69.2105	178.009	0.491	0.886
Q.12	69.1053	173.178	0.707	0.881
Q.13	68.2632	176.740	0.646	0.883
Q.14	68.8421	172.839	0.603	0.883
Q.15	68.4211	185.764	0.234	0.892
Q.16	69.3684	181.861	0.353	0.890
Q.17	68.3684	179.266	0.564	0.885
Q.18	69.4474	173.821	0.628	0.882
Q.19	68.8684	174.712	0.558	0.884
Q.20	68.8684	176.820	0.478	0.886
Q.21	69.0526	173.349	0.536	0.885
Q.22	69.2895	186.644	0.196	0.894
Q.23	69.1053	175.232	0.647	0.882