Almeida-Martínez, Francisco J.Urquiza-Fuentes, JaimePérez-Carrasco, Antonio2011-09-092011-09-092011-07-29Informes Técnicos DLSI1-URJC1988-8074http://hdl.handle.net/10115/5522In this document we describe an evaluation performed with VAST to build LR (1) parsers and grammars. The results of the evalua- tion are satisfactory, so although we did not nd any statistics signi cant di erences, we noticed that students could nish the exercises faster. Be- sides the number of deliveries was higher in the treatment group than in the control one.enAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/Informáticainfo:eu-repo/semantics/reportinfo:eu-repo/semantics/openAccess1203.23 Lenguajes de Programación