Children without math difficulties outperformed children with math difficulties in word problem solving overall, but gaps narrowed on some conditions at Wave 2¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q3
Currency · newest study 2013 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? A significant main effect of ability group was found across waves, with children without MD outperforming children with MD. → Swanson 2013 q3 i? No significant ability group differences were found at low WMC for the verbal + visual or control conditions at Wave 2. → Swanson 2013

Evidence¶

Swanson 2013¶

Swanson, H. L., Lussier, C. M., & Orosco, M. J. (2013). Cognitive Strategies, Working Memory, and Growth in Word Problem Solving in Children With Math Difficulties. Journal of Learning Disabilities, 48(4), 339–358. doi:10.1177/0022219413498771

q3 · i? · causal · r2

Intent-to-treat mixed ANOVA across four testing waves; "children without MD outperformed children with MD" (M = 1.06 vs. M = 0.04 as printed in the article).

"A significant effect was found for ability group F(1, 447) = 114.73, p < .001, testing wave, F(3, 447) = 273.42, and WMC, F(1, 447) = 24.63, p < .001. As expected children without MD outperformed children with MD"

Swanson 2013 (2)¶

Swanson, H. L., Lussier, C. M., & Orosco, M. J. (2013). Cognitive Strategies, Working Memory, and Growth in Word Problem Solving in Children With Math Difficulties. Journal of Learning Disabilities, 48(4), 339–358. doi:10.1177/0022219413498771

q3 · i? · causal · r2

Year 1 Wave 2 analysis; the article reports "accuracy scores were statistically comparable between children with and without MD at Wave 2 on isolated treatment conditions."

"Although children without MD clearly out performed children with MD at Wave 1 across all treatment conditions, accuracy scores were statistically comparable between children with and without MD at Wave 2 on isolated treatment conditions."

Discussion¶

Related Claims¶

• Substantial drops in word problem solving accuracy occurred from Wave 2 to Wave 3 for children with math difficulties, while children without MD showed steady increases — related
• Strategy instruction effects on word problem solving in children with math difficulties are moderated by working memory capacity, favoring high-WMC levels — related
• At high WMC, children with math difficulties performed significantly better under visual-only strategy conditions relative to other conditions at Wave 4 — related
• At high WMC, children without math difficulties performed better under verbal + visual conditions compared to control — related
• At low WMC, the visual-only condition was a significant disadvantage for children with math difficulties — related
• Verbal and verbal+visual strategy conditions improve calculation accuracy for both ability groups — related
• Strategy training outcomes on word problem accuracy interact with working memory capacity, favoring children with higher WMC — related