Each of the three algebraic cognition measures independently predicts algebra achievement, controlling demographic and domain-general covariates¶

Claim · All claims
Evidence · 1 study · associational r2 · q3
Currency · newest study 2015 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Equation memory, coordinate plane PAE, and expression evaluation speed and accuracy each predicted algebra achievement in independent regressions (βs = .170 to .349) and when simultaneously entered (βs = .100 to .272). → Geary David C. 2015

Evidence¶

Geary David C. 2015¶

Geary David C., Hoard Mary K., Nugent Lara, Rouder Jeffrey N. (2015). Individual Differences in Algebraic Cognition: Relation to the Approximate Number and Sematic Memory Systems. Journal of experimental child psychology. https://doi.org/10.1016/j.jecp.2015.07.010

q3 · i? · associational · r2

External validity regressions in the 171-student sample, controlling parental education, sex, reading, processing speed, intelligence, and central executive. Each algebraic cognition measure "predicts algebra achievement in independent regression equations" (βs = .170 to .349); reading and intelligence were the only consistent covariate predictors.

"Results from the associated regression equations shown in Table 4 confirm that each of the algebraic cognition measures predicts algebra achievement in independent regression equations (βs = .170 to .349, ps<.007) and when simultaneously included in a single equation (βs = .100 to .272, ps<.078)."

Discussion¶

Related Claims¶

• ANS acuity predicts accuracy of coordinate plane placements and expression evaluation accuracy, but not equation memory, in 9th graders — related
• Frequency of addition fact-retrieval errors predicts poor algebra equation memory but not coordinate plane or expression evaluation performance — related
• Coordinate plane placement accuracy shows no x- versus y-axis difference; quadrant errors are driven by sign transpositions in a small subset of students — related
• ANS acuity is not related to algebra achievement once covariates are controlled, whereas retrieval errors remain predictive — related