Evidence map›Paper›PMID 27348475›Full record

ArticleJournal of experimental child psychology2016

The precision of mapping between number words and the approximate number system predicts children's formal math abilities.

Melissa E Libertus, Darko Odic, Lisa Feigenson, Justin Halberda

Abstract read
In one paragraph

Article in Journal of experimental child psychology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

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0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed.

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  15. Early neuropsychological profile of children diagnosed with a brain tumor predicts later academic difficulties at school age.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2021
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  16. Article
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  19. Predicting Age of Becoming a Cardinal Principle Knower.Journal of educational psychology · 2019
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Melissa E LibertusDepartment of Psychology and Learning Research and Development Center, University of Pittsburgh, Pittsburgh, PA 15260, USA; Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD 21218, USA. Electronic address: libertus@pitt.edu.
Darko OdicDepartment of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD 21218, USA; Department of Psychology, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada.
Lisa FeigensonDepartment of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD 21218, USA.
Justin HalberdaDepartment of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD 21218, USA.

Funding

Development and Function of Nonverbal Number ApproximationR01HD057258 · NICHD · JOHNS HOPKINS UNIVERSITY · PI FEIGENSON, LISA, HALBERDA, JUSTIN · 2009 to 2013
$1.6M
NICHD NIH HHS R01 HD057258
6 · The paper itself

Abstract

Children can represent number in at least two ways: by using their non-verbal, intuitive approximate number system (ANS) and by using words and symbols to count and represent numbers exactly. Furthermore, by the time they are 5years old, children can map between the ANS and number words, as evidenced by their ability to verbally estimate numbers of items without counting. How does the quality of the mapping between approximate and exact numbers relate to children's math abilities? The role of the ANS-number word mapping in math competence remains controversial for at least two reasons. First, previous work has not examined the relation between verbal estimation and distinct subtypes of math abilities. Second, previous work has not addressed how distinct components of verbal estimation-mapping accuracy and variability-might each relate to math performance. Here, we addressed these gaps by measuring individual differences in ANS precision, verbal number estimation, and formal and informal math abilities in 5- to 7-year-old children. We found that verbal estimation variability, but not estimation accuracy, predicted formal math abilities, even when controlling for age, expressive vocabulary, and ANS precision, and that it mediated the link between ANS precision and overall math ability. These findings suggest that variability in the ANS-number word mapping may be especially important for formal math abilities.

Indexed as

MathematicsVocabularyAptitudeChildChild, PreschoolDiscrimination, PsychologicalFemaleHumansIndividualityNeuropsychological TestsANS-number word mappingApproximate number system (ANS)Formal mathIndividual differencesInformal mathNumber estimation

Identifiers

PMID27348475
PMCPMC4969135

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.