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Article

A longitudinal genetic study of vocabulary knowledge in adults.

Twin research : the official journal of the International Society for Twin Studies - 1 Jun 2004

van den Berg Stéphanie M, Posthuma Daniëlle, Boomsma Dorret I

Abstract excerpt

Vocabulary test scores were obtained from a total of 997 adults, all twins or a sibling of twins in this study. Some (N = 217) individuals were tested twice, around 6 years apart. Heritability varied from 50% at the first test occasion to 63% at the second test occasion. The correlation of scores across time was.74. Structural equation modelling showed that stability in vocabulary knowledge over time can largely...

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PMID: 15193173
DOI: 10.1375/136905204774200569

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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