Methodology
How we research, score, and update this site
By The School Choice Index Editorial Team · Published · Last reviewed
Source hierarchy
For every state page, we work from the primary sources in this order: the enacted bill text, the codified statute, the most recent administrative rule, and the program administrator’s published guidance. Secondary sources — advocacy materials, news coverage, and educational podcasts — are used to surface changes and to triangulate when the primary sources are silent or ambiguous, but we do not cite them as authority.
Classification
We classify each state’s program into one of six categories: Universal ESA, Limited ESA, Voucher, Tax-Credit Scholarship, Refundable Tax Credit, or None. The boundaries between categories are not always sharp; we erred toward the design type that most closely matches the funding mechanism rather than the political branding.
Award amounts
We report the headline per-student amount as published by the administrator. Where amounts vary by grade level, income tier, or disability status, we report the most common award and note the variance in the state page narrative. We do not estimate or project; if the administrator has not published a current-year amount, we report the most recent published amount with the year.
Update cadence
State pages are reviewed on a rolling cadence, with priority given to states with active legislative sessions or imminent application windows. We re-verify award amounts and eligibility rules at the start of each application cycle. Major policy changes (a newly enacted program, a court decision affecting eligibility, an appropriation cap change) trigger an immediate re-publish.
Corrections
We publish corrections openly. When a fact on this site has been corrected, the page footer is updated with the date of the correction. Substantive corrections that change the editorial meaning of a piece are flagged inline.
What we will not claim
We will not claim that any state’s program is “the best” or “the worst.” We will not extrapolate from a single study to a general conclusion about whether school choice “works.” We will not advocate for or against the expansion of school choice. We will not infer parent or student motives from enrollment patterns.
The empirical research on ESAs and vouchers is mixed in ways that depend heavily on program design, geography, and which outcomes are being measured. We try to reflect that honestly, which sometimes makes our coverage less satisfying than the certainty offered by either side. That trade-off is intentional.
Page last reviewed May 25, 2026.