Validation of the Short Version (TLS-15) of the Triangular Love Scale (TLS-45) across 37 Languages

0577493 - PSÚ 2025 DE eng J - Journal Article
Kowal, M. - Sorokowski, P. - Dinić, B.M. - Pisanski, K. - Gjoneska, B. - Frederick, D.A. - Pfuhl, G. - Milfont, T.L. - Bode, A. - Aguilar, L. - García, F.E. - Roberts, S.C. - Abad-Villaverde, B. - Kavčič, T. - Miroshnik, K.G. - Ndukaihe, I.L.G. - Šafárová, Katarína - Valentova, J.V. - Aavik, T. - Blackburn, A. M. - Çetinkaya, H. - Duyar, I. - Guemaz, F. - Ishii, T. - Kačmár, P. - Natividade, J.C. … Total 87 authors
Validation of the Short Version (TLS-15) of the Triangular Love Scale (TLS-45) across 37 Languages.
Archives of Sexual Behavior. Roč. 53, č. 2 (2024), s. 839-857. ISSN 0004-0002. E-ISSN 1573-2800
Institutional support: RVO:68081740
Keywords : triangular theory of love * triangular Love Scale * cross-cultural
OECD category: Psychology (including human - machine relations)
Impact factor: 3.8, year: 2022
Method of publishing: Open access
https://link.springer.com/article/10.1007/s10508-023-02702-7#citeas

Love is a phenomenon that occurs across the world and affects many aspects of human life, including the choice of, and process of bonding with, a romantic partner. Thus, developing a reliable and valid measure of love experiences is crucial. One of the most popular tools to quantify love is Sternberg’s 45-item Triangular Love Scale (TLS-45), which measures three love components: intimacy, passion, and commitment. However, our literature review reveals that most studies (64%) use a broad variety of shortened versions of the TLS-45. Here, aiming to achieve scientific consensus and improve the reliability, comparability, and generalizability of results across studies, we developed a short version of the scale—the TLS-15—comprised of 15 items with 5-point, rather than 9-point, response scales. In Study 1 (N = 7,332), we re-analyzed secondary data from a large-scale multinational study that validated the original TLS-45 to establish whether the scale could be truncated. In Study 2 (N = 307), we provided evidence for the three-factor structure of the TLS-15 and its reliability. Study 3 (N = 413) confirmed convergent validity and test–retest stability of the TLS-15. Study 4 (N = 60,311) presented a large-scale validation across 37 linguistic versions of the TLS-15 on a cross-cultural sample spanning every continent of the globe. The overall results provide support for the reliability, validity, and cross-cultural invariance of the TLS-15, which can be used as a measure of love components—either separately or jointly as a three-factor measure.
Permanent Link: https://hdl.handle.net/11104/0346620