SDI · Strength Deployment Inventory

The SDI is an official Crucial Learning personality assessment that reveals your motivation system, how you experience conflict, your strengths and how those strengths can limit you when overused. It is grounded in Elias Porter's Relationship Awareness Theory (1971) and has been experienced by more than 5 million people.

Between 20 and 30 minutes. It is a self-guided online questionnaire with immediate results across the four views and a downloadable personalized report.

It is available in 14 languages, including Spanish, English, French, German and Italian.

It is an assessment, with an optional group workshop to get the most out of it: 3.5 hours in person or a facilitated remote session, where the four views are explored and applied to the team's real cases.

Not exactly, and that is its advantage. Most of those tests classify traits or types: MBTI (Myers-Briggs) boxes you into one of 16 types, DISC describes observable behavioral styles, Hogan predicts performance and "derailers," and the Enneagram groups people into nine personality types. The SDI does something different: instead of labeling you, it measures your motives (the "why" behind your behavior) and, above all, how those motives change as conflict escalates. That makes it far more actionable for improving real relationships: it doesn't stop at "this is who you are," it explains why you clash with someone and what to do about it. That is why it is usually described as a relationship-intelligence tool rather than a conventional personality test.

Usually because you have different motives and, under conflict, those motives shift in predictable sequences that the other misreads. The SDI makes that clash visible and gives concrete ways to adapt instead of labeling each other.

There are two views on personality (your motives at your best and how they change in conflict) and two on behavior (the strengths you use most and the ones you overuse). Together they explain why you act as you do and how others perceive you.

To improve cross-team collaboration, reduce misunderstandings, connect people's motives with organizational goals, and as a foundation for leadership programs. It pairs especially well with the development of the organization's key skills.

Yes. The platform lets you map and compare team results to improve collaboration, and it can be deployed privately in person or virtually, including internal facilitator certification.