Validation of the Short Version (TLS-15) of the Triangular Love Scale (TLS-45) across 37 Languages
Marta Kowal1, Piotr Sorokowski2, Bojana M Dinić3
1IDN Being Human Lab, University of Wrocław, Dawida 1, 50-529, Wrocław, Poland. marta7kowal@gmail.com.
Archives of Sexual Behavior
|October 26, 2023
Summary
Researchers developed the 15-item Triangular Love Scale (TLS-15) to reliably measure love components: intimacy, passion, and commitment. This validated short scale offers cross-cultural invariance for global research on romantic experiences.
Area of Science:
- Psychology
- Social Psychology
- Relationship Science
Background:
- Measuring love experiences is crucial for understanding romantic relationships.
- Sternberg's 45-item Triangular Love Scale (TLS-45) is widely used but often shortened, impacting reliability.
- A need exists for a scientifically validated, shorter measure of love's components.
Approach:
- Developed the 15-item Triangular Love Scale (TLS-15) with a 5-point response format.
- Conducted four studies involving over 75,000 participants to validate the TLS-15.
- Utilized secondary data analysis, reliability testing, convergent validity, and cross-cultural validation.
Key Points:
- The TLS-15 demonstrated reliability and validity across multiple studies.
- The scale confirmed a three-factor structure measuring intimacy, passion, and commitment.
- Cross-cultural validation across 37 languages supports global applicability.
Conclusions:
- The TLS-15 is a reliable, valid, and cross-culturally invariant measure of love components.
- This short scale enhances comparability and generalizability in love research.
- The TLS-15 can be used to measure love components individually or collectively.
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