Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.5272	0.549	0.5394	0.2333
A excluded	0.465	0.4751	0.3854	0.2318
B excluded	0.4327	0.4285	0.428	0.2
C excluded	0.2849	0.3637	0.3221	0.16
D excluded	0.5914	0.6086	0.5334	0.3414