Measuring Interpersonal Liking as a Cognitive Evaluation: Development and Validation of the IL-6

Abstract

The purpose of the present project is to present a conceptually derived, six-item, interpersonal liking measure (the IL-6) based on a cognitive evaluation of liking. Results from three studies with a total sample size of N = 1,959 indicate high reliabilities (ranging from .87 to .91) across studies. Results of confirmatory factor analyses are reported along with data supporting content, criterion, discriminant, and convergent validity. Results indicate that the IL-6 is both valid and reliable and is a short but effective means for accurately assessing interpersonal liking across various relational contexts.