General |
|
|---|---|
| Number of people authenticated | 44 |
| Number of candidates attempting or having attempted the NAIT | 24 |
| Number of candidates attempting or having attempted the NAIT-ES | 9 |
NAIT Statistics |
|
|---|---|
Sample Data |
|
| Completed test sessions (N) | 19 |
| Lowest raw score | 35 |
| Highest raw score | 114 |
| Range | 80 |
| Resolution | 12.5 |
Central Tendency and Dispersion |
|
| Mean raw score (± 95% CI) | 84.16 ± 9.7 |
| Median raw score | 85 |
| Raw score mode | 85 |
| Raw score standard deviation | 19.59 |
| Quartile deviation | 10.5 |
| Raw score standard error of measurement | 3.24 |
Distribution Shape |
|
| Skewness | -0.72 |
| Excess Kurtosis | 0.64 |
Reliability |
|
| McDonald's omega | 0.9478 |
| Cronbach's alpha | 0.9726 |
| Split Half Reliability Index * | 0.9558 |
| Spearman–Brown corrected | 0.9774 |
Difficulty |
|
| Sample-dependent hardness | 0.29 |
| Sample-independent hardness ** | 0.31 |
| Items never solved by anyone | 3 |
Candidates |
|
| Youngest candidate (years) | 20.0 |
| Oldest candidate (years) | 75.0 |
| Mean age (years) | 35.0 |
| Median age (years) | 37.3 |
| Age standard deviation (years) | 15.78 |
| Percentage of males | 94.7 |
| Percentage of females | 0.0 |
| Percentage classified as unknown/other sex | 5.3 |
Candidates by Country (listed only if more than 2) |
|
| China | 2 |
| Germany | 2 |
| Italy | 2 |
| Japan | 2 |
| United States of America | 2 |
* Average over 100 random two-part splits of the test's item set.
** Based on the norm computed from all the current data (not "official" norms necessarily) and a median IQ of 138.5.
Correlations are computed between the raw score on the NAIT and the raw scores on other tests, except in the case of standardized tests (e.g., WAIS), where correlations are computed between the raw NAIT score and the standardized IQ score.
| Test Name | Spearman ρ | Pearson r | Pairs |
|---|---|---|---|
| VTPR 26 | 1.000 | 0.991 | 5 |
| CLM 39 | 1.000 | 0.853 | 4 |
| MCST 32 | 1.000 | 0.998 | 3 |
| Numerus | 1.000 | 0.976 | 3 |
| MCST 40 | 1.000 | 1.000 | 2 |
| Simplex | 1.000 | 1.000 | 2 |
| SLSE II | 1.000 | 1.000 | 2 |
| SPEED | 1.000 | 1.000 | 2 |
| LSHR Classic | 1.000 | 1.000 | 2 |
| Associative LIMIT | 1.000 | 1.000 | 2 |
| VTPR II | 1.000 | 1.000 | 2 |
| Lexiq | 1.000 | 1.000 | 2 |
| Algebrica | 1.000 | 1.000 | 2 |
| Hieroglyphica | 1.000 | 1.000 | 2 |
| SAT 36 | 0.975 | 0.722 | 5 |
| Simtollect | 0.949 | 0.984 | 4 |
| Einplex | 0.949 | 0.935 | 4 |
| LSHR | 0.866 | 0.996 | 3 |
| LSHR Light | 0.866 | 0.993 | 3 |
| MVA 28 | 0.866 | 0.998 | 3 |
| Wechsler Adult Intelligence Scale (aggregate) | 0.800 | 0.961 | 4 |
| NIT-Form 1 | 0.500 | 0.884 | 3 |
| World Intelligence Test | -0.200 | -0.565 | 4 |
| Mathema | -0.866 | -0.829 | 3 |
| LRN 38 | -1.000 | -1.000 | 2 |
| NSL 36 | -1.000 | -1.000 | 2 |
If you have previously taken other IQ tests, please consider sharing your earlier scores with the test author at email. This will allow the computation of correlations and g-loadings. You can use this form for convenience.
In the initial preliminary norm, scores were weighted based on estimated item difficulty. The norm was then estimated from this weighted score. However, this approach led to inaccuracies when item difficulties were either over or underestimated. Therefore, until sufficient data is available to accurately estimate item difficulty (beginning at N = 100), norms will be temporarily based on raw scores as is standard practice for most tests, even if not ideal.
June 26, 2025. The enhanced first preliminary norm has been published, significantly reducing inflation at the extremes of the range. It remains an estimate.
Current NAIT normAugust 13, 2025. An estimated norm for NAIT-ES has been published.
Current NAIT-ES normNorming roadmap: