TudorandClaude Opus 4.8
ae6ef6860b
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Special schools, PRUs and alternative provision teach pupils with SEND who sit the same KS2/KS4 assessments but very few reach the mainstream "expected standard". Their headline attainment is therefore ~0% (or a very low Attainment 8), and the site was comparing that to the England average and painting it red — e.g. Greenmead School (a community special school) rendered as "0.0% — −62 pts below England average" with three 0% red SATs bars. That portrays a special school as catastrophically failing against a benchmark that doesn't fit it. Add a shared `isSpecialSchool()` helper (detects every DfE special-school establishment type — all contain "special" — plus PRUs / alternative provision) and drop the mainstream England comparison + "below" framing for these schools across every surface: - Detail (primary + secondary): a plain-English context note explaining the school is special and why the comparison isn't shown; England-average delta chips, "England avg" hints, the SATs national markers, the Attainment-8 "vs national" bar and the trend chart's England overlay are all suppressed. An all-zero placeholder SATs row hides the (empty) subject bar chart and the "why is combined lower" bridge. - Rankings / search rows (primary + secondary): the mainstream RWM / Attainment 8 stat shows "—" with no "vs national" delta, instead of "0% · −62 vs national". - Compare: special schools' attainment values are dropped (no misleading dot at 0% / no "Below England average" chip); progress banding, which IS a fair measure for special schools, is kept. Belt-and-braces zero-guard: a whole-row zero attainment (special or a suppressed cohort) is also treated as not-comparable, while a legitimate single 0 (e.g. 0% exceeding at a mainstream school) stays comparable. Tests: new isSpecialSchool unit tests (every DfE special type matched, no mainstream false positives); an e2e journey asserts Greenmead shows the special-school note and no England-average comparison. tsc clean; 108/108 unit. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0146VHeLAWjDVE2B5uU67jCB