Global Wealth Study recreation
Aaru reports that EY asked it to recreate the 2025 Global Wealth Study in a blinded exercise covering 3,600 affluent investors in more than 30 markets. Aaru reports a median Spearman correlation of 0.90 for that exercise.
This is a result reported on Aaru's own site. It is a scoped comparison, not evidence that performance transfers unchanged to every audience, market or intervention.