Evidence Lab
The Evidence Lab adds model-based analyses for questions that charts and maps alone cannot resolve.
Simulation Lab
An interactive what-if model showing how attendance, adult education, and income vary together with predicted test outcomes.
Includes uncertainty intervals and multiple visualization modes. This simulator currently uses the
income-based specification for continuity; see Statistical Findings for poverty-aware companion results.
Open simulation guide
Statistical Findings
A compact synthesis of the non-interactive numeric analyses, including joint models, interaction checks,
stability tests, spending/class-size exploratory models, and poverty-aware checks.
Open findings summary