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In this video I provide a basic introduction to twin studies and heritability scores. I explain how a heritability score tells us about the role of genes in explaining variance in a trait. I also discuss some common errors and emphasize that heritability is about the role of genes in general, not about specific genes, and that it only tells us about groups of people, not individuals. I also discuss some hypothetical examples that illustrate how differences in environments can influence heritability scores. Don’t forget to subscribe to the channel to see future videos! Have questions or topics you’d like to see covered in a future video? Let me know by commenting or sending me an email! Need more explanation? Check out my full psychology guide: Master Introductory Psychology: http://amzn.to/2eTqm5s Enable closed-captioning or find a full transcript of this video here: http://www.psychexamreview.com/what-is-heritability/
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