That's why I didn't say conclusively, I merely said it could be argued. I'd need to assemble more data to correlate the two.
But based on prior knowledge, everyone had more intact families then. Meaning social and cultural pressure to preserve your family were higher and that kept even the lowest of IQs together a little stronger. Many cultural changes since those days have deteriorated the institution of marriage and its strength, so it stands to reason the failsafes that kept them afloat for those struggling would no longer operate.
But again, that's just an argument to relate his point back into my counter.
That's why I didn't say conclusively, I merely said it could be argued. I'd need to assemble more data to correlate the two.
But based on prior knowledge, everyone had more intact families then. Meaning social and cultural pressure to preserve your family were higher and that kept even the lowest of IQs together a little stronger. Many cultural changes since those days have deteriorated the institution of marriage and its strength, so it stands to reason the failsafes that kept them afloat for those struggling would no longer operate.
But again, that's just an argument to relate his point back into my counter.
If there's an effect of IQ, then the families of the lowest IQ people should have been lower then, and I am pretty sure there was no correlation then.