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Score lab

Move through the distribution.

Translate a supplied score into a theoretical percentile and rarity. Then inspect why a model is not the same thing as an official, age-normed score report.

points
Normal-model scale
Percentile97.7thNormal-model estimate
Directional rarityabout 1 in 44at or above
Standard position+2.00σ2.00 SD above the mean
Normal-model bell curve for IQ 130IQ 130 is shown at approximately the 97.72th percentile on a scale with mean 100 and standard deviation 15.557085100115130145130

This is a theoretical normal-distribution conversion, not a test result, diagnosis, confidence interval, or eligibility decision. Official percentiles depend on the exact test, edition, age norms, and score report.

Reviewed score guides

Popular landmarks

These pages answer high-demand score questions without generating a thin page for every integer.

IQ score

120

Percentile, directional rarity, scale comparison, and evidence limits for IQ 120.

Open score guide IQ score

125

Percentile, directional rarity, scale comparison, and evidence limits for IQ 125.

Open score guide IQ score

130

Percentile, directional rarity, scale comparison, and evidence limits for IQ 130.

Open score guide IQ score

140

Percentile, directional rarity, scale comparison, and evidence limits for IQ 140.

Open score guide IQ score

160

Percentile, directional rarity, scale comparison, and evidence limits for IQ 160.

Open score guide