Current number of candidates attempting the test: n = 20
Completed test sessions: N = 9
Items solved by everyone: 13
Items never solved by anyone: 3
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, however.
Current normNorming roadmap: