Table 1. Reliability Analysis by Cronbach’s Alpha Test in Young’s Internet Addiction Test.

	Scale Mean if Item Deleted	Scale Variance if Item Deleted	Corrected Item-Total Correlation	Squared Multiple Correlation	Cronbach’s Alpha if Item Deleted	Before and After Correlation
i1	32.09	144.007	0.433	0.372	0.916	0.54
i2	32.69	141.134	0.592	0.489	0.913	0.65
i3	33.25	141.879	0.669	0.550	0.911	0.69
i4	33.26	142.982	0.550	0.370	0.913	0.81
i5	33.33	139.259	0.726	0.600	0.910	0.91
i6	33.34	141.079	0.660	0.693	0.911	0.83
i7	32.71	144.277	0.375	0.249	0.919	0.48
i8	33.50	145.342	0.594	0.659	0.913	0.68
i9	33.31	143.455	0.579	0.452	0.913	0.96
i10	32.98	139.201	0.386	0.208	0.922	0.58
i11	32.20	143.582	0.410	0.310	0.917	0.48
i12	33.08	140.270	0.591	0.456	0.913	0.57
i13	33.01	140.063	0.669	0.553	0.911	0.60
i14	33.36	139.497	0.719	0.584	0.910	0.73
i15	33.33	142.042	0.660	0.528	0.911	0.62
i16	33.04	139.176	0.672	0.581	0.911	0.59
i17	33.27	141.606	0.634	0.504	0.912	0.55
i18	33.41	141.626	0.668	0.552	0.911	0.64
i19	33.37	142.367	0.629	0.493	0.912	0.68
i20	33.48	142.686	0.657	0.569	0.912	0.50
Average					0.917	0.654