The record.
Peer-reviewed output from the institute’s six laboratories, the annual reporting programme, and the open data releases that let other groups check our arithmetic.
- 312
- Publications
- 18,400+
- Citations
- $4.2M
- Active grants
- 6
- Laboratories
Standard V4.2: Global Intelligence Benchmarks
Prof. H. Jass, Dr. M. Oxmaul
The updated norming release, covering 6.9 million standardised assessments across 140 nations. Reports the revised difficulty and discrimination parameters for the full item pool, an overall reliability of α = 0.962, and a standard error of measurement of 2.41 IQ points at the mean.
Bars are output, stacked by kind. The dashed trace is citations attracted. Click a year to filter the list.
Showing 8 of 8 entries
Non-Verbal Item Invariance Across Forty Language Groups
Dr. S. T. Wong, D. G. Igger
A multi-group item parameter calibration testing whether matrix-reasoning items behave identically once verbal content is removed entirely. Differential item functioning is negligible in 38 of 40 groups.
Response Latency as a Predictor of Fluid Reasoning
Dr. S. T. Wong, Dr. M. Oxmaul
Millisecond-resolution timing across 210,000 sittings shows that the speed–accuracy relationship, rather than either measure alone, carries most of the predictive weight for novel problem solving.
Global Intelligence Trends, 2024
Prof. H. Jass, Institute Analytics Team
The annual reporting programme: score distributions by region, age band and testing modality, with a note on the continued narrowing of the supervised/unsupervised gap.
Brain Patterns in Modern Society
Dr. M. Oxmaul, D. G. Igger
How habitual information retrieval reshapes the strategies people bring to unfamiliar problems, measured across a decade of matched cohorts.
Memory versus Logic
D. G. Igger, Prof. H. Jass
Why strong recall and strong deduction dissociate more often than a single-factor model predicts, and what that implies for reporting one number.
Manifold Representations of Working Memory Load
Dr. M. Oxmaul
A geometric account of processing bandwidth under increasing cognitive load. Preprint; under review at Cognitive Dynamics Quarterly.
ATAI Open Norming Subset (n = 240,000)
Prof. H. Jass
A pseudonymised extract of the norming database released for independent replication: item-level responses, latencies and demographic strata, with all identifying telemetry removed.
Item Exposure Control in Short Adaptive Batteries
Dr. S. T. Wong, D. G. Igger
Keeping a twelve-minute adaptive test both precise and un-memorisable: an exposure-control routine that trades a negligible amount of information for a large gain in item pool longevity.
