Table 1.

Type I errors for the variable speciation and extinction model with data generated under the null hypothesis of equal speciation and extinction rates between trees. Each analysis consisted in generating three phylogenies with an equal expected number of extant lineages equal to $E(N)=50$, 100, 200, or 500. Each simulation condition was replicated 500 times

Expected number of lineages, E(N)	Type I error rate	P (binomial test)
50	0.057	0.296
100	0.051	0.447
200	0.049	0.529
500	0.056	0.232