ANS acuity is a unique concurrent predictor of preschool math ability beyond expressive vocabulary, non-numerical attention RT, and memory span¶

Claim · All claims
Evidence · 1 study · associational r2 · q3
Currency · newest study 2013 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Accuracy on the ANS task uniquely predicted concurrent TEMA-3 scores controlling for vocabulary, K-CPT RT, and memory span (partial r2 = 0.18, p < 0.001). → Libertus Melissa E. 2013 q3 i? RT on the ANS task remained a significant predictor even controlling for RT on the non-numerical attention task (partial r2 = 0.05, p = 0.01). → Libertus Melissa E. 2013

Evidence¶

Libertus Melissa E. 2013¶

Libertus Melissa E., Feigenson Lisa, Halberda Justin. (2013). Is Approximate Number Precision a Stable Predictor of Math Ability? Learning and Individual Differences. https://doi.org/10.1016/j.lindif.2013.02.001

q3 · i? · associational · r2

Concurrent linear regressions at Time 2 (Table 5) predicting TEMA-3 from ANS accuracy or Weber fraction w, ANS RT, expressive vocabulary, K-CPT RT, and memory span while controlling for age; models captured significant variance (model 1: R2 = 0.33, F(5,117) = 11.63, p < 0.001), with accuracy contributing partial r2 = 0.18 and ANS-RT partial r2 = 0.05, p = 0.01.

"both estimates of ANS acuity in each model (i.e., accuracy and RT, or w and RT) contributed uniquely to the relationship with math ability when controlling for all other variables"

Discussion¶

Related Claims¶

• Early ANS acuity does not predict later expressive vocabulary; only initial vocabulary size predicts vocabulary six months later — related
• Early ANS acuity (accuracy and RT) uniquely predicts preschoolers' math ability six months later, controlling for initial math ability, age, and expressive vocabulary — related
• Initial math ability is the largest single predictor of later math ability, accounting for 45% of variance in later TEMA-3 scores — related
• ANS acuity correlates with later number sets fluency but does not emerge as a unique predictor once symbolic knowledge is controlled — related
• Block Play Predicts Math Achievement — related
• Preschoolers' ANS task performance follows Weber's Law: accuracy decreases as numerical ratio approaches equality, and improves with age over six months — related
• Children's knower level of verbal number words is cross-sectionally associated with ANS acuity even after controlling for age and sex — related
• Concurrent validity evidence is sparse: only 11 assessments and one screener aligned with other validated measurement tools — related