Intellect Norms

Empirical population distributions and percentile tables calculated from 1,410,553 respondents.

💡All assessment reports use Percentile Ranks (0–100th %ile) relative to global population norms.

Population Mean

14.48

Scale: 4–20

Std. Deviation

3.4

Variance: 11.56

Median (P50)

50th Percentile

Skewness

-0.36

Kurtosis: -0.4

Percentile Conversion Table

Percentile Rank	P1	P5	P10	P25 (Q1)	P50 (Median)	P75 (Q3)	P90	P95	P99
Raw Score Threshold	6	9	10	12	15	17	19	20	20

Male (N = 548,799)Mean 14.98 (SD 3.34)

Female (N = 861,754)Mean 14.16 (SD 3.4)

Age 10-17Mean: 14.15 (SD 3.35)

Age 18-24Mean: 14.14 (SD 3.4)

Age 25-34Mean: 15.12 (SD 3.3)

Age 35-49Mean: 15.15 (SD 3.36)

Age 50-64Mean: 15.28 (SD 3.37)

Age 65+Mean: 15.61 (SD 3.31)

Use our interactive percentile calculator to benchmark your score against 1.41 million participants.