Coordinate plane placement accuracy shows no x- versus y-axis difference; quadrant errors are driven by sign transpositions in a small subset of students¶

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? A 2 (axis) by 4 (quadrant) repeated measures ANOVA found a non-significant axis effect, a significant quadrant effect, and a non-significant interaction; error rates were higher in quadrants II and IV due to transpositions. → 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

Repeated measures ANOVA on percent absolute error for x- and y-axis placements in the 171-student sample. The authors report error rates were higher for quadrant II and IV pairs, driven by sign transpositions committed largely by a small number of students (58% of double transpositions by 7 students).

"The results revealed a non-significant axis effect, F(1,169) = 1.68, p=.1963, a significant quadrant effect, F(3,507) = 9.09, p<.0001, and a non-significant interaction, F(3,507) = 2.30, p=.0761."

Discussion¶

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