US cohort achievement trends per decade are steeper in math (median 0.19sd) than in reading (median 0.04sd) across linked surveys¶

Claim · All claims
Evidence · 1 study · associational r2 · q3
Currency · newest study 2022 · not yet checked against its sources · not reviewed by a person · recheck by 2027: baselines and conditions change

Subclaims¶

q3 i? The median decadal cohort trend is 0.19sd in math but only 0.04sd in reading across the linked surveys. → M. Danish Shakeel · Paul E. Peterson 2022

Evidence¶

M. Danish Shakeel · Paul E. Peterson 2022¶

M. Danish Shakeel · Paul E. Peterson. (2022). A Half Century of Progress in US Student Achievement: Agency and Flynn Effects, Ethnic and SES Differences. Educational Psychology Review. https://doi.org/10.1007/s10648-021-09657-y

q3 · i? · associational · r2

Results section reports median change per decade across all linked surveys, computed from quadratic fits to cohort trends in NCES restricted-use data. The article states "The median decadal trend in m comes to 0.19sd, but it is only 0.04sd in rd"; the largest subject difference is 4th-grade NAEP (0.39sd m vs 0.08sd rd).

"The median decadal trend in m comes to 0.19sd, but it is only 0.04sd in rd (Tables 2 and 3). If extrapolated to a fifty-year period, the cohort gains in m would be 0.95sd, but just 0.20sd in rd."

Discussion¶

Related Claims¶

• Estimates of cohort achievement trends vary substantially by survey agent, with PISA reporting negative math trends — related
• Fourth-grade cohorts in other countries also show larger math than reading gains, suggesting moderators more general than the United States — related
• Achievement progress is steeper for students tested at younger ages, especially in math — related
• For cohorts born since 1990, reading progress increased while math progress slowed — related
• Average scores on intelligence tests have risen substantially across generations worldwide — related