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README.md

@@ -14,11 +14,12 @@ license: apache-2.0
 
 A meta-leaderboard: not a ranking of TTS models, but of the **judges**
 themselves — how well each SLM (speech-language-model) judge tracks human
-ratings on Hume's TTS evals. Agreement is the Pearson r between the judge's
+ratings on Hume's TTS evals. Agreement is the Spearman ρ between the judge's
 per-generation scores and individual human votes, computed per eval and
-averaged; the table shows the Overall mean and each TTS category, heatmapped
-on fixed absolute anchors (0 → 0.75 r). Cells flagged `*` had at least one
-zero-variance eval (r undefined, reported as 0).
+averaged; the table shows each TTS category (the Overall mean stays in the
+data but isn't rendered), heatmapped on fixed absolute anchors (0 → 0.75 ρ).
+Cells flagged `*` had at least one zero-variance eval (ρ undefined, reported
+as 0).
 
 Single-board sibling of the Real World VoiceEQ Benchmark Space — same app
 machinery, same data schema, same backing dataset.