Table 3.

Descriptive statistics for each item and IG.

Item	Mean	Standard deviation	Asymmetry	Kurtosis	Standard error
des_1	2.63	0.94	−0.13	−0.88	0.05
des_2	2.79	0.77	−0.27	−0.26	0.04
des_3	2.72	0.77	−0.01	−0.54	0.04
des_4	3.10	0.67	−0.51	0.59	0.04
des_5	3.19	0.69	−0.38	−0.41	0.04
des_6	3.13	0.67	−0.35	−0.02	0.04
des_7	3.10	0.68	−0.19	−0.63	0.04
des_8	3.17	0.65	−0.32	−0.13	0.04
des_9	3.14	0.70	−0.42	−0.16	0.04
des_10	3.17	0.62	−0.13	−0.53	0.04
des_11	2.94	0.75	−0.18	−0.60	0.04
des_12	3.14	0.67	−0.30	−0.27	0.04
des_13	3.05	0.72	−0.18	−0.73	0.04
des_14	2.96	0.75	−0.30	−0.32	0.04
des_15	3.08	0.68	−0.28	−0.25	0.04
des_16	3.03	0.66	−0.45	0.64	0.04
des_17	3.08	0.71	−0.50	0.26	0.04
des_18	3.17	0.67	−0.33	−0.29	0.04
IG	3.03	0.71	−0.29	−0.25	0.04