Discover the origins of the Strength Deployment Inventory (SDI) and the science behind it. From Elias Porter’s groundbreaking work with Carl Rogers in the 1950s to decades of ongoing research, this video explains how the SDI shifted personality assessment from diagnosing problems to uncovering positive motives that drive behaviour. Learn how its colour-based framework, scientific foundations, and relationship-focused insights help people build self-awareness, strengthen interactions, and improve workplace relationships.
Learn more 👉 SDI Assessment
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