The prediction power of specific processing speed for mathematics decreases with reduced arithmetic fluency: complex multiplication did not predict mathematics although it predicted Chinese and English¶

Claim · All claims
Evidence · 1 study (2 entries) · associational r2 · q2
Currency · newest study 2022 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Complex multiplication failed to account for variance in mathematics achievement in either grade, while simple and complex subtraction did. → Cheng Dazhi 2022 q2 i? Complex multiplication did predict Chinese and English in both grades, with ΔR² between 0.029 and 0.039. → Cheng Dazhi 2022 (2)

Evidence¶

Cheng Dazhi 2022¶

Cheng Dazhi, Shi Kaihui, Wang Naiyi, Miao Xinyang, Zhou Xinlin. (2022). Examining the Differential Role of General and Specific Processing Speed in Predicting Mathematical Achievement in Junior High School. Journal of Intelligence. https://doi.org/10.3390/jintelligence10010001

q2 · i? · associational · r2

In the Grade 7 and Grade 9 hierarchical regressions, complex multiplication showed non-significant ΔR² for mathematics (0.020 and 0.014 in Table 2), below the Bonferroni-corrected threshold; equivalence was not tested.

"However, complex multiplication could not account for the variances in mathematical achievement, even after controlling for age, gender, nonverbal matrix reasoning, spatial abilities, and visual attention."

Cheng Dazhi 2022 (2)¶

Cheng Dazhi, Shi Kaihui, Wang Naiyi, Miao Xinyang, Zhou Xinlin. (2022). Examining the Differential Role of General and Specific Processing Speed in Predicting Mathematical Achievement in Junior High School. Journal of Intelligence. https://doi.org/10.3390/jintelligence10010001

q2 · i? · associational · r2

The same regression models show complex multiplication significantly predicting Chinese, English, and total scores at Bonferroni-corrected p < 0.05 or p < 0.01, with the printed ΔR² values as quoted.

"complex multiplication predicted variances in Chinese (ΔR2 = 0.033, p < 0.05) and English (ΔR2 = 0.034, p < 0.05) in Grade 7 and Chinese (ΔR2 = 0.029, p < 0.05), English (ΔR2 = 0.039, p < 0.01), and total scores (ΔR2 = 0.033, p < 0.05) in Grade 9."

Discussion¶

Related Claims¶

• Specific processing speed generalises beyond mathematics, significantly predicting Chinese and English achievement in both Grade 7 and Grade 9 — related
• Specific processing speed (reading fluency and simple/complex subtraction fluency) makes a significant unique contribution to Grade 7 mathematics achievement after controlling for age, gender, and general cognitive abilities — related
• Specific processing speed measured at the start of Grade 7 predicts mathematics achievement on the high school entrance examination at the end of Grade 9 — related
• General processing speed (choice reaction time and figure matching) does not significantly predict mathematics achievement in Grade 7 or Grade 9 — related
• The relation between visual perception and computational fluency holds for simple subtraction across all grades but only for higher grades in complex arithmetic — related