Demographic changes worked in SFUSD's favor during the pandemic but have since worked against SFUSD.

The change in the ELA score for SFUSD's 3rd graders during the pandemic (i.e. 2019-2022) and after (i.e. 2022-2024) is decomposed into a change due to the evolving sizes of SFUSD's demographic subgroups and a change due to the scores of each of those subgroups.