I think you're right that static typing reduces bugs, but I am not convinced the reduction is significant or meaningful. If static typing has a significant effect, then why is the existing research so weak and inconclusive?
I don't understand your point about metrics and measurement. Are you saying the effect of static typing is so small that it is completely dominated by other confounding factors and thus cannot be measured?
I don't understand your point about metrics and measurement. Are you saying the effect of static typing is so small that it is completely dominated by other confounding factors and thus cannot be measured?