# What is the significance level for Somers'd?

For tests such as chi square, the significance level is usually 0.05, but I've seen some people interpret p-values for Somers'd such as .000 as significant, displaying the results similar to this: (d= .603, p<.0005)

So is the significance level for Somers'd .0005? If so, is this the same with other similar ordinal measures of association such as gamma and Kendall? Thanks!