Guide
Percentiles explained (what percentile means)
Practical, no-fluff guidance designed for repeatable improvement.
Percentile is a rank, not a percent correct.
- 50th percentile means you scored higher than about half of the reference group.
- 90th percentile means higher than about 90% of the reference group.
Percentiles depend on the reference group and the test. IQNIVA shows a common normal-model estimate for clarity, plus your on-site performance-based estimate.
Try the percentile calculator for quick conversions.
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