Every module in the NeuroRank combine is a working replication of a peer-reviewed cognitive paradigm. The score is the paradigm's standard outcome, z-scored against a live cohort of competitive players.
Competitive play is a constraint problem: fixed-window decisions under perceptual noise, with task-relevant and task-irrelevant information arriving simultaneously. Four cognitive bottlenecks dominate outcomes, working memory span[1], inhibitory control[2], target selection under distractor load[3], and task-set switching cost[4]. The combine measures each twice, once under speed pressure and once under interference, for eight total modules.
The modules are not new instruments. Each is a re-implementation of a paradigm with a published canonical form and decades of population-level data. We replicate; we do not invent. This choice is the product's credibility.
Raw latencies and accuracy counts do not transfer across ages, titles, or input devices. NeuroRank publishes the within-subject z-score relative to an age-matched sample, refreshed nightly from the live cohort. A score of +1σ means the run is one standard deviation above the cohort mean for that age bracket and that module.
The dimension score surfaced in the combine is a z-score mapped to the 0–100 scale where the cohort median is 58 and the top decile threshold is 84. Both numbers move as the cohort grows; historical scorecards stamp the cohort version so old runs stay comparable.