Table 4.

Descriptive statistics for the scores given by the three groups of raters to photographs with altered gonial heights. In images 1 to 9, the gonion was, respectively, 4.5 mm above the mouth corner, at the level of mouth corner, 4.5 mm below the mouth corner, 9 mm, 13.5 mm, 18 mm, 22.5 mm, 27 mm, and 31.5 mm below the mouth corner.

Image	Sex	OMFS					Orthodontists					Laypersons
		N	Mean	SD	Min	Max	N	Mean	SD	Min	Max	N	Mean	SD	Min	Max
O1	Female	11	7.36	1.03	6	9	19	7.05	1.68	3	10	34	6.35	1.77	4	10
	Male	21	6.05	1.75	2	9	14	6.57	1.87	3	9	28	5.79	2.32	0	10
	Both	32	6.50	1.65	2	9	33	6.85	1.75	3	10	62	6.10	2.04	0	10
O2	Female	11	7.18	0.98	5	8	19	6.95	1.58	4	10	34	6.41	1.65	4	10
	Male	21	6.00	1.67	2	9	14	6.57	1.70	3	9	28	5.86	2.01	1	10
	Both	32	6.41	1.56	2	9	33	6.79	1.62	3	10	62	6.16	1.83	1	10
O3	Female	11	6.91	0.94	5	8	19	6.63	1.74	3	10	34	6.50	1.76	3	10
	Male	21	5.95	1.75	2	9	14	6.36	2.06	3	9	28	5.89	1.81	1	10
	Both	32	6.28	1.57	2	9	33	6.52	1.86	3	10	62	6.23	1.80	1	10
O4	Female	11	6.55	1.57	4	9	19	6.74	1.66	4	10	34	6.41	2.03	0	10
	Male	21	6.00	2.02	2	10	14	5.93	1.98	2	9	28	5.82	2.04	1	10
	Both	32	6.19	1.87	2	10	33	6.39	1.82	2	10	62	6.15	2.04	0	10
O5	Female	11	6.27	1.62	4	9	19	6.11	1.85	3	10	34	6.29	2.22	0	10
	Male	21	5.76	2.17	2	10	14	5.57	2.47	1	9	28	5.79	1.93	1	10
	Both	32	5.94	1.98	2	10	33	5.88	2.12	1	10	62	6.06	2.10	0	10
O6	Female	11	5.73	1.90	3	8	19	5.58	1.98	3	10	34	6.24	2.19	0	10
	Male	21	5.38	2.27	1	10	14	5.71	2.20	2	9	28	5.96	2.13	1	10
	Both	32	5.50	2.13	1	10	33	5.64	2.04	2	10	62	6.11	2.15	0	10
O7	Female	11	5.45	1.57	3	8	19	5.37	2.22	2	10	34	6.21	2.28	0	10
	Male	21	5.19	2.25	1	10	14	5.43	2.38	1	9	28	5.50	2.08	1	10
	Both	32	5.28	2.02	1	10	33	5.39	2.25	1	10	62	5.89	2.20	0	10
O8	Female	11	5.18	1.60	3	8	19	4.79	2.44	1	10	34	5.79	2.35	0	10
	Male	21	4.86	2.39	1	10	14	4.93	2.56	0	8	28	5.32	2.31	1	10
	Both	32	4.97	2.13	1	10	33	4.85	2.45	0	10	62	5.58	2.32	0	10
O9	Female	11	4.91	1.76	3	9	19	4.53	2.55	1	10	34	5.44	2.27	0	10
	Male	21	4.48	2.34	1	10	14	4.64	2.59	0	8	28	4.82	2.58	1	10
	Both	32	4.63	2.14	1	10	33	4.58	2.53	0	10	62	5.16	2.42	0	10

O: three-quarter oblique-view image; SD: standard deviation; Min: minimum; Max: maximum.