The DC reforms were associated with grade 8 math gains, especially for cohorts with more exposure, but not grade 8 reading gains¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q2
Currency · newest study 2021 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Grade 8 math showed learning gains associated with the reforms, particularly for cohorts with more reform exposure. → Dallas Dotter 2021 q2 i? No comparable grade 8 reading gains were found. → Dallas Dotter 2021 (2)

Evidence¶

Dallas Dotter 2021¶

Dallas Dotter, Duncan Chaplin, Maria Bartlett. (2021). Impacts of School Reforms in Washington, DC on Student Achievement. Washington, DC: Mathematica. https://www.mathematica.org/publications/impacts-of-school-reforms-in-washington-dc-on-student-achievement

q2 · i? · causal · r2

NAEP-based comparative analysis covering five pre-2007 and three post-2007 DC cohorts found "similar gains in grade 8 math, especially for cohorts with more exposure to the reforms". No effect size is printed for grade 8 math in the brief.

"We also find similar gains in grade 8 math, especially for cohorts with more exposure to the reforms, but not in grade 8 reading."

Dallas Dotter 2021 (2)¶

Dallas Dotter, Duncan Chaplin, Maria Bartlett. (2021). Impacts of School Reforms in Washington, DC on Student Achievement. Washington, DC: Mathematica. https://www.mathematica.org/publications/impacts-of-school-reforms-in-washington-dc-on-student-achievement

q2 · i? · causal · r?

The same NAEP comparative analysis reports no analogous gains for grade 8 reading, a null pattern with no test statistic or effect size printed in the brief.

"We also find similar gains in grade 8 math, especially for cohorts with more exposure to the reforms, but not in grade 8 reading."

Discussion¶

Related Claims¶

• The DC school reforms were associated with learning gains in grade 8 math but not in grade 8 reading — possibly the same claim (merge candidate)
• The 2007 DC school reforms improved student learning in math, per testimony based on NAEP data from the early 1990s to 2017 — related
• Impacts of the DC reforms on NAEP math scores were largest for Black students — related
• The DC school reforms were associated with larger than expected improvements in grade 4 math and reading scores on the National Assessment of Educational Progress — related
• Student outcome improvements from LCFF funding were more pronounced for cohorts exposed to funding increases for more of their school-age years — related
• The 2007 DC school reforms improved student learning in reading, per testimony based on NAEP data through 2017 — related
• DC math impacts of about one-third of a standard deviation are similar in magnitude to New Orleans reforms and larger than some well-known interventions — related