Please do link to any studies that actually designed, developed, and carried out a comparable experiment with different results. I'd be more than happy to read

Please do link to any studies that actually designed, developed, and carried out a comparable experiment with different results. I'd be more than happy to read them! I try to base my views on evidence so much as I possibly can -- and to my knowledge, such studies do not exist. On that note please do not link to any studies where an individual decided to 'process' data and p-hack their way to a proof for their ideological biases. There are indeed a multitude of such studies, and such behavior goes a long ways towards explaining the current replication crisis plaguing psychology. p-hacking is particularly easy to do with IQ since there's a peculiar effect in that the heritability of IQ is not fixed. When we are young our IQ is generally able to be more significantly influenced by environmental factors, yet as we age our IQ becomes ever more a product of genetics with recent studies showing the heritability to be upwards of 80%. So for instance in this study if you look at the results of the children at age 7, you'll note that both black and white children had measured IQs that were about 10% higher than their IQ at age 17 (around 8 and 10 points respectively). This is normal and indicative of a privileged upbringing, as all the children in this study had. Yet that privilege counter intuitively does not carry over into adulthood, which is phenomenally interesting -- but also makes it very easy to generate disingenuous arguments when it comes to this topic.