Non gene explanation for racial differences

No.11908221 ViewReplyOriginalReport
What are some good non genetic explanations for the black/iq gap? I really want to believe blacks are dumber because of their shitty culture and not because they genetically are.
Here is one study
https://psycnet.apa.org/record/1986-24139-001
>Compared mean IQ test performance and response styles to cognitive demands of the Wechsler Intelligence Scale for Children (WISC) among 23 Black children (aged 7–10 yrs) who had been adopted by middle-class White families (i.e., transracially adopted) and 23 age-matched Black children who had been adopted by middle-class Black families (i.e., traditionally adopted). Findings indicate that while the traditionally adopted Ss received normal IQ scores, transracially adopted Ss showed nearly 1 standard deviation Full-Scale Scoring advantage over them.