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A Two-Minute Paper-and-Pencil Test of Symbolic and Nonsymbolic Numerical Magnitude Processing Explains Variability in Primary School Children's Arithmetic Competence
- Nadia Nosworthy,
- Stephanie Bugden,
- Lisa Archibald,
- Barrie Evans,
- Daniel Ansari

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- Published: July 2, 2013
- https://doi.org/10.1371/journal.pone.0067918