A critical element in the evolution of a fundamental body of knowledge in marketing, as well as for improved marketing practice, is the development of measures of the variables with which marketers work. Colombian companies are using adapted tools from original English language found freely on...

A critical element in the evolution of a fundamental body of knowledge in marketing, as well as for improved marketing practice, is the development of measures of the variables with which marketers work. Colombian companies are using adapted tools from original English language found freely on...

Previous work has already established the reliability and validity of the Grit scale, based on the classical test theory (Duckworth, Peterson, Matthews, & Kelly, 2007). This study tests the psychometric properties and the dimensionality of the scale by employing an IRT analysis of data collected...