🧠 Open RPM — Raven's Progressive Matrices

Beautiful, private, client-side IQ test.
Vanilla JS • No tracking • 60 matrices • Results in seconds

🔗 Repo: github.com/Xeven777/OpenRpm
🚀 Live: https://xeven777.github.io/OpenRpm/ (after Pages enable)

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✨ Features

• 🧠 True Raven's 60 — 5 series A-E ( A/B 6 options, C/D/E 8 options ), 20-minute timer with visual countdown
• 🎂 Age-fair scoring — 14-15 · 16-17 · 18-30 (peak) · 31-35 → 56+ with correction finalIQ = round(baseIQ*100/agePercent) — fair for teens & older adults
• 📊 IQ + Percentile — cubic spline raw → baseIQ (30→82, 40→95, 50→110) + normal CDF (118 → 88th percentile)
• 📈 Beautiful results — hero Instrument Serif IQ, bell curve (55-145) with your marker + 5-axis radar A-E (solid = you, dashed = expected)
• 🔗 Share & PDF — one-tap Share + Download PDF / print
• ⚡ Fast & smooth — parallel preload, instant image swap, no framework
• ⌨️ Keyboard & a11y — 1-8 to answer, ←/→ + Enter to navigate, button[role=radio] + focus-visible
• 💾 Resilient — auto-saves to localStorage, resume modal if you refresh (24h)
• 🔤 Polished type — Inter + Instrument Serif via Google Fonts, dark premium UI
• 🔒 Private — 100% local, no server, no tracking
• 🌐 English — clean single-language bundle

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🧩 How it works

1. Pick age → Age 18-30 is peak (100), teens 14-15/16-17 get small boost, 56+ gets +42% (70 denominator)
2. 20 min, 60 matrices — 5 series A-E (A/B 6 options, C/D/E 8 options). Progress: Question 7 of 60 (Series B) + thin timer bar (white → orange → red)
3. Scoring:

   // script.js:121, 590
   baseIQ = splineInterpolate(rawScore) // 0→0, 30→82, 40→95, 50→110, 60→140
   finalIQ = Math.round(baseIQ * 100 / agePercent)
   percentile = normalCDF((finalIQ-100)/15) // 118 → 88th

4. Reliability — compares each series A-E vs NORMATIVE_DISTRIBUTION (script.js:8). If Series A deviation ≤ -3 or >2 series deviate >2 → flagged as unreliable / attention drift.

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🎨 Stack

• No framework — index.html + style.css + script.js + answers.js (base64) + translations.js
• 66 SVGs in images/1.svg…60.svg (potrace)
• Fonts via CDN — no local fonts/ubuntu.ttf needed
• Storage — raven_age, raven_progress_v1 in localStorage

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📁 Structure

.
├── index.html        # single page — intro / test / results-v2
├── style.css         # Inter + dark tokens + radar/bell styles + print
├── script.js         # RavenApp, spline, preload×6, keyboard, radar/bell SVG
├── translations.js   # en only (age_14_15 etc.)
├── answers.js        # base64 answer key
├── images/1.svg…60.svg
└── favicon/

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📖 Docs

Scoring & norms from the clinical manual:

• Тест Равена. Шкала прогрессивных матриц.

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🤝 Contributing

PRs welcome!

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📜 License

GPLv3+ — see LICENSE. Share, fork, improve. 💚

Made with 🧠 + ☕ by Xeven