Psychometric Properties of Gambrill and Richey's Assertiveness Inventory on Chilean University Students

The following research is contextualized in the design, implementation and validation of an educational model to develop Generic Competences in a chilean university. It looks to obtain reliability and validity measures that support the use of the Gambrill and Richey's Assertiveness Inventory in that context. A descriptive study is made for construct validity, through an Exploratory Factor Analysis with Oblique rotation (Promax), and on reliability through the Alfa Cronbach coefficient. The sample is made up of 759 university students, 50.1% female and 49.9% male, with ages fluctuating between 18 and 46 years, with a mean of 20.3 and standard desviation of 2.3 years. The result is a 6 factor structure, that explain 51,45% and 50.05% of the total variation for Discomfort (D) and Response Probability (RP) respectively A high reliability is obtained, with a=.93 for D, a=.92 for RP and a=.95 for the total scale.