Table 9d.

Internet Gaming Disorder Scale Wave 2 reliability analysis, if items deleted

								if item dropped
		mean		SD		item-rest correlation		Cronbach's α		McDonald's ω
IGD9_Q1_W2		2.26		1.055		0.623		0.843		0.857
IGD9_Q2_W2		1.76		0.914		0.715		0.834		0.846
IGD9_Q3_W2		1.89		0.996		0.716		0.833		0.848
IGD9_Q4_W2		1.63		0.903		0.724		0.834		0.845
IGD9_Q5_W2		1.93		1.045		0.637		0.842		0.856
IGD9_Q6_W2		1.49		0.824		0.617		0.845		0.855
IGD9_Q7_W2		1.28		0.697		0.507		0.855		0.864
IGD9_Q8_W2		2.92		1.221		0.435		0.869		0.872
IGD9_Q9_W2		1.25		0.612		0.419		0.861		0.871