Sex-specific subgroup models show the same functional forms for boys and girls, though cubic coefficients for boys were not significant after correction¶

Claim · All claims
Evidence · 1 study · associational r3 · q3
Currency · newest study 2022 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Subgroup analyses found the same best-fitting functional forms for boys and girls, with some boys' cubic coefficients non-significant after Bonferroni correction. → Ahmed 2022

Evidence¶

Ahmed 2022¶

Ahmed, S. F., Ellis, A., Ward, K. P., Chaku, N., & Davis-Kean, P. E. (2022). Working memory development from early childhood to adolescence using two nationally representative samples. Developmental Psychology. https://doi.org/10.1037/dev0001396

q3 · i? · associational · r3

Sex subgroup analyses on the full PSID-CDS age range: cubic fit best for both sexes, but "the cubic coefficient was not statistically significant for boys after adjusting for multiple comparisons" for forward span (p = .005) and backward span (p = .035); girls' coefficients were significant.

"However, the cubic coefficient was not statistically significant for boys after adjusting for multiple comparisons (girls: b = 0.002, p < .001; boys: b = 0.001, p = .005)."

Discussion¶

Learner Variables¶

• Gender — predictor: outcomes differ by group: a gap reflecting circumstances and treatment, not a cause

Related Claims¶

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