This paper presents a psychometric study performing a confirmatory factor analysis of Gismero's Social Skills Scale. A background review is conducted on evaluation tools generally used for social skills, and the general characteristics of the scale are presented for the tool studied. A review is also conducted on psychometric properties of this tool. The sample consisted of 1206 college students at the Universidad Catalica de Temuco, Chile. Confirmatory factor analysis was conducted using a polychoric correlation matrix, and the structure proposed by Gismero was analyzed. Reliability assessment procedures, such as internal consistency (Ordinal Alpha) and discriminant validity analysis, were also conducted using AF5 factors. The results show good internal reliability of the tool, suitability of the model to the data, and good discriminant validity. In conclusion, the Gismero's Social Skills Scale is considered as a suitable tool for assessing social skills in Chilean university students. A slight modification of the model structure in the second order factor level is proposed. Copyright (C) 2012, Konrad Lorenz University Foundation. Published by Elsevier Espana, S.L.U.