Table 1.

Type I and Type II error rates resulting from stable versus Brownian model selection using the BPIC model selection criterion, with data simulated on trees of various sizes under stable processes with varying indices of stability

		Tree size (tips)
Error	α	25	40	60	90	130	175	235	325	440	600
Type I	2.0	0.11	0.08	0.04	0.01	0.01	0.00	0.00	0.00	0.00	0.00
Type II	1.8	0.66	0.45	0.47	0.51	0.24	0.24	0.20	0.10	0.07	0.04
	1.6	0.39	0.20	0.08	0.21	0.04	0.01	0.00	0.00	0.00	0.00
	1.4	0.16	0.04	0.00	0.10	0.00	0.00	0.00	0.00	0.00	0.00
	1.2	0.09	0.00	0.00	0.04	0.00	0.00	0.00	0.00	0.00	0.00
	1.0	0.02	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00