What is the Triangular Love Scale?

It's a 15-item questionnaire (5 items per component: intimacy, passion, commitment) developed by Sternberg. Respondents rate their agreement with statements like "I am actively supportive of [partner]'s well-being." Scores create a love triangle profile.

How valid is the Triangular Love Scale?

It's well-validated across multiple studies and cultures. It reliably distinguishes between love types and predicts relationship satisfaction, commitment, and stability. It's one of the most empirically-tested love assessment tools.

Can the scale predict relationship longevity?

Research shows that higher scores (especially high commitment and intimacy) correlate with longer-lasting relationships. Unbalanced triangles (one component much higher than others) may indicate vulnerability to dissolution.

How should couples interpret their results?

Compare your triangles. Ideally, both partners see similar shapes. Large discrepancies indicate potential conflict—one might perceive more passion while the other feels low intimacy. Use results to guide conversations about relationship needs.

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The Triangular Love Scale: How Sternberg Measures Love

Peter Kolomiets

|March 29, 2026|Updated Apr 13, 2026|7 min read

The Triangular Love Scale: How Sternberg Measures Love

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References

Sternberg, R. J. (1997). Construct Validation of a Triangular Love Scale
Lin, S. L., & Peng, S. L. (2010). The Triangular Love Scale: Cross-Cultural Validation
Sprecher, S., & Regan, P. C. (2006). Measurement Issues in Love Research

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The Triangular Love Scale: How Sternberg Measures Love

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Sternberg's Triangular Theory of Love: The Complete Guide

The Triangular Love Scale: How Sternberg Measures Love

References

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Explore Remote Careers

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Sternberg's Triangular Theory of Love: The Complete Guide