Direct subtraction items were solved more accurately and faster than indirect addition items¶
Claim · All claims
Evidence · 1 study · associationalr2·q3
Currency · newest study 2014 · not yet checked against its sources · not reviewed by a person
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q3 i? A repeated measures ANOVA showed significantly higher accuracy and faster response times for DS-items than IA-items. → Linsen 2014
Evidence¶
Linsen 2014¶
Linsen, S., Verschaffel, L., Reynvoet, B., De Smedt, B. (2014). The Association between Children's Numerical Magnitude Processing and Mental Multi-digit Subtraction. Acta Psychologica. https://doi.org/10.1016/j.actpsy.2013.10.008
q3 · i? · associational · r2
A repeated measures ANOVA on accuracies with item type as within-subject factor in the 56-child sample showed DS-items were solved significantly more accurately than IA-items, F(1,55) = 5.47, p < .05; response times were also significantly faster for DS-items, F(1,55) = 4.21, p < .05. No effect sizes are printed.
"the accuracy for the DS-items was significantly higher than for the IA-items (F(1,55) = 5.47, p < .05)"
Discussion¶
Related Claims¶
- The association between numerical magnitude processing and subtraction is more prominent for items eliciting indirect addition than for direct subtraction items — related
- Children with developmental dyscalculia are disproportionately impaired on subtraction accuracy relative to addition, showing a significant group × operation interaction — related
- Numerical magnitude processing is significantly associated with children's mental multi-digit subtraction performance, controlling for intellectual ability and motor speed — related
- Explicitly taught students used the complex task-specific strategy types indirect subtraction and simplifying more than twice as often as implicitly taught students at post-test — related
- Symbolic numerical magnitude comparison has a more unique association than number line estimation with children's speed on indirect-addition subtraction items — related
- Both symbolic and nonsymbolic magnitude processing correlate with subtraction accuracy, but subtraction speed is associated only with symbolic tasks — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
ds-items-faster-more-accurate-than-ia-items |
title |
Direct subtraction items were solved more accurately and faster than indirect addition items |
description |
Direct subtraction items were solved more accurately and faster than indirect addition items |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2014 |
generated |
by process:wiki-ingest on 2026-10-17 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — linsen-2014 |
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