Table 2.

Descriptive statistics for Example 2 (WAIS-R data)

item	n	mean	sd	median	min	max	skew	kurtosis
F_info	940	8.98	2.80	9	1	18	0.20	0.30
F_voca	940	9.25	2.97	9	1	19	0.09	−0.09
F_comp	940	8.89	2.83	9	1	17	0.18	0.11
F_arit	940	9.33	3.06	9	1	19	0.11	−0.16
M_info	940	9.82	3.10	10	1	18	0.06	−0.27
M_voca	940	9.41	3.06	9	1	19	0.23	−0.23
M_comp	940	9.87	3.03	10	2	17	0.18	−0.35
M_arit	940	9.61	3.09	10	2	19	0.15	−0.21