Marta KowalPiotr SorokowskiBojana M. DinicKatarzyna PisanskiBiljana GjoneskaDavid A. FrederickGerit PfuhlTaciano L. MilfontAdam BodeLeonardo AguilarFelipe E. GarciaS. Craig RobertsBeatriz Abad-VillaverdeTina KavcicKirill G. MiroshnikIzuchukwu L. G. NdukaiheKatarina SafarovaJaroslava V. ValentovaToivo AavikAngelique M. BlackburnHakan CetinkayaIzzet DuyarFarida GuemazTatsunori IshiiPavol KacmarJean C. NatividadeRavit NussinsonMohd Sofian B. Omar-FauzeeMa. Criselda T. PacquingKoen PonnetAustin H. WangGyesook YooRizwana AminEkaterine PirtskhalavaReza AfhamiAlexios ArvanitisDerya Atamturk DuyarTheo BessonMahmoud BoussenaSeda CanAli R. CanJoao CarneiroRita CastroDimitri ChubinidzeKsenija CunichinaYahya DonSeda DuralEdgardo EtchezaharFeten Fekih-RomdhaneTomasz FrackowiakNasim Ghahraman MoharrampourTalia Gomez YepesSimone GrassiniMarija JovicKevin S. KertechianFarah KhanAleksander KobylarekValerija KrizanicSamuel LinsTetyana MandzykEfisio ManuntaTamara Martinac DorcicKavitha N. MuthuArooj NajmussaqibTobias OtterbringJu Hee ParkIrena Pavela BanaiMariia PerunMarc Eric S. ReyesJan P. RoerAysegul SahinFatima Zahra SahliDusana SakanSangeeta SinghSanja Smojver-AzicSinem SoylemezOgnen SpasovskiAnna StudzinskaEzgi Toplu-DemirtasArkadiusz UrbanekTatiana VolkodavAnna WlodarczykMohd Faiz Mohd Y. YaakobMat Rahimi YusofMarcos Zumarraga-EspinosaMaja ZupancicRobert J. SternbergFrederick, David A.Kowal, MartaDinic, Bojana M.Sternberg, Robert J.Pisanski, KatarzynaGjoneska, BiljanaSorokowski, Piotr2025-10-0620240004-00021573-280010.1007/s10508-023-02702-72-s2.0-85174942530http://dx.doi.org/10.1007/s10508-023-02702-7https://gcris.yasar.edu.tr/handle/123456789/7944https://doi.org/10.1007/s10508-023-02702-7Love 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 = 7332) 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 = 60311) 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.Englishinfo:eu-repo/semantics/openAccessTriangular theory of love, Triangular Love Scale, Cross-culturalOF-FIT INDEXES, MARITAL SATISFACTION, ROMANTIC RELATIONSHIPS, LIKING RESPONSES, SAMPLE-SIZE, COVARIANCE, CRITERIA, EROTICA, MENSTriangular Love ScaleTriangular Theory of LoveCross-culturalArticle