Reliability and Aspects of the Construct Validity of Sternberg's Triangular Love Scale

Abstract

This research investigated the factor structure, reliability and aspects of the construct validity of Sternberg's Triangular Love Scale (TLS). Confirmatory factor analysis showed that the items of the TLS loaded on their designated factors of intimacy, passion and commitment; however, the model fit was poor and the factors were highly correlated. Exploratory factor analysis revealed that numerous items loaded on more than one factor. The subscales had extremely high internal consistencies and adequate 2-month test-retest reliabilities. Scores on all three subscales were related to relationship exclusivity and survival over the 2-month period, but only commitment and passion were related to expectancy for relationship survival. Implications and limitations of the research are discussed.