Lux evidence
Evidence that develops in stages
Lux is moving through an active, staged evidence-development programme. We publish what current evidence supports, state the limits, and strengthen claims only when pre-defined studies produce supporting results.
What we know
A documented starting point
The full ten-item Big Five item banks have documented internal consistency of α .800–.898 in a 603,322-response source/reference dataset.
This is source/reference internal-consistency evidence, not a count of Lux participants and not proof that every Lux output is valid.
Lux also has an evidence-governance architecture: defined fields, versioned scoring, report eligibility and explicit claim limits. That makes the work more inspectable; it does not by itself establish psychological validity.
The active programme combines ongoing testing of versioned scoring and committed fixtures with staged Lux-specific empirical evaluation. Technical checks make the scoring pathway more inspectable; they do not by themselves establish psychological reliability or validity.
Work in progress
A staged path to stronger claims
- Test–retest reliability is part of the active evidence programme and will assess score stability as repeat-response data becomes available.
- Staged studies will examine convergent and discriminant validity for proprietary Lux fields, representative norms, intended-population fairness and clinical utility as suitable data and study designs become available.
- Lux remains a descriptive assessment. It is not clinically validated, diagnostic, predictive or a basis for personnel selection.
- The programme is active, but it has not yet produced completed Lux-specific validation results.
How claims advance
Evidence grows by study, not volume alone
Eligible participant data enables pre-defined studies; participant volume alone does not establish validity, reliability, norms, fairness or clinical utility. Stronger public claims will follow only when study results support them.
Discuss evidence partnerships