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Article

Math fluency is etiologically distinct from untimed math performance, decoding fluency, and untimed reading performance: evidence from a twin study.

Journal of learning disabilities - 1 Jan 2000

Petrill Stephen, Logan Jessica, Hart Sara, Vincent Pamela, Thompson Lee, Kovas Yulia, Plomin Robert

Abstract excerpt

The authors examined whether math fluency was independent from untimed math and from reading using 314 pairs of school-aged twins drawn from the Western Reserve Reading and Math Projects. Twins were assessed through a 90-min home visit at approximately age 10 and were reassessed in their homes approximately 1 year later. Results suggested that the shared environment and genetics influenced the covariance among...

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Identifiers

PMID: 21890908
DOI: 10.1177/0022219411407926
PMCID: PMC3413280

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 6 Sept 2026. Manifest publication-graph-cohort-2026-09-06.1.

Source receipt: pubmed, retrieved 6 Sept 2026.

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