# Does sibling and twin similarity in cognitive ability differ by parents’ education?

> Research article (Journal of Family Research, 2019) · cited 18× · AI/ML

**Wikidata**: [openalex:W2938490762](https://www.wikidata.org/wiki/openalex:W2938490762)  
**Source**: https://4ort.xyz/entity/does-sibling-and-twin-similarity-in-cognitive-ability-differ-by-parents-education