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Insights on personality, psychology, and self-discovery
Soultrace 3.0: The Trait Model 🚀
Soultrace 3.0 introduces a latent trait model that infers 8 psychological traits before computing colors. Better accuracy, response style correction, and psychologically grounded results.
By Francesco Zuppichini, Francesco Cicala
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The Five-Color Personality System Explained
Discover SoulTrace's unique five-color personality framework. Learn how White, Blue, Black, Red, and Green represent fundamental drives that shape how you think, decide, and connect with others.
By Francesco Zuppichini, Francesco Cicala
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Types of Personality Tests: Complete Guide to Finding Your Best Fit
Compare the most popular personality tests including MBTI, Big Five, Enneagram, and DISC. Find out which personality test is most accurate for your needs.
By Francesco Zuppichini, Francesco Cicala
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How Soultrace Works: A Deep-Dive for Nerds
The math and code behind Soultrace's latent trait model. Bayesian inference on psychological traits, ERS conditioning, and adaptive question selection.
By Francesco Zuppichini, Francesco Cicala
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How SoulTrace Works
Discover how SoulTrace's adaptive personality test uses psychological traits and smart question selection to deliver personalized insights into your personality.
By Francesco Zuppichini, Francesco Cicala
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