Table 6.

The total number of skull and os coxae traits observed, the numbers with correct, ambiguous and incorrect results and their accuracy rates

Trait	Total correct	Total?	Total incorrect	Total	Raw % accuracy	Total sexed	% accuracy	McNemar test	Cohen's kappa	p
Ventral arch	48	2	2	52	92.3	50	96.0	1.000	0.937	<.001
Ischiopubic ramus	43	5	0	48	89.6	43	100.0	1.000	1.000	<.001
Subpubic concavity	46	0	0	46	100.0	46	100.0	1.000	1.000	<.001
Sciatic notch	61	11	3	75	81.3	64	95.3	1.000	0.843	<.001
Arc compose	59	4	7	70	84.3	66	89.4	0.063	0.722	<.001
Preauricular sulcus	53	0	19	72	73.6	71	73.6	0.277	0.560	<.001
Subpubic angle	35	2	0	37	94.6	35	100.0	1.000	1.000	<.001
Ilium shape	49	3	10	62	79.0	59	83.1	0.687	0.671	<.001
Nuchal crest	34	11	9	54	62.9	43	79.1	0.180	0.471	.001
Mastoid process	66	28	10	104	63.5	76	86.8	1.000	0.741	<.001
Glabella	36	8	8	52	69.2	44	81.8	1.000	0.617	<.001
Supraoribital margin	55	19	20	94	57.9	75	72.4	0.581	0.377	.013
Frontal bossing	22	12	10	44	50.0	32	68.8	0.007	0.143	.299
Zygomatic arch extension	58	24	18	100	58.0	76	76.3	0.508	0.406	.012
Forehead inclination	30	5	9	44	68.2	39	76.9	0.508	0.494	.002
Mental eminence	40	14	1	55	72.7	41	97.6	1.000	0.951	<.001
Flaring at gonial angle	52	17	23	92	56.5	75	69.3	1.000	0.297	.060
Overall mandible shape	27	3	7	37	72.9	34	79.4	1.000	0.639	<.001

Key: Total? = total indeterminate. McNemar and Cohen's kappa tests were run without ambiguous scores. Significant or near significant values in bold.