

150 is actually appropriate for this type of study and effect size.
Especially considering it was a longitudinal study that spanned 35 years. Impressive they could maintain that many participants.
Sure we could always use bigger samples but 150 is really good actually.
Secondly.
Causal research is a whole other thing.
Correlation research comes first. Once that’s established , Then causal research.
Causal research is much more different to conduct for social factors like this. Nearly impossible actually.
So don’t be surprised when such research doesn’t exist.
You can’t manipulate someone’s IQ. And you can’t really manipulate their political leaning.
There is no real way to run an experimental study to find out causes.
Best you can do is find more correlations.










Drugged and raped multiple women.