It would be nice if you had the sexes of the siblings, since it's supposedly only the older brothers that count, though I don't really expect that to change anything. I wanted to do that but given the Ablaza et al. results where the effect exists for all older siblings, I decided it wasn’t worth the drop in power.
It would be nice if you had the sexes of the siblings, since it's supposedly only the older brothers that count, though I don't really expect that to change anything.I wanted to do that but given the Ablaza et al. results where the effect exists for all older siblings, I decided it wasn’t worth the drop in power.