Acceso usuarios
Antonio Montero-Seoane, Milagros Ezquerro García-Noblejas, Miguel Á. Saavedra-García 
The aim of this work is to analyze the differences between players of a group following a token economy program and another who does not follow it. The results indicate that young players perceive that their trainers have a preference for attacking actions during the match; this unanimity in preferences disappears during training. Significant differences were found significant differences in the preferences of coach during training; which means that belonging to one group of study implies different choices. There have been found significant differences between groups in specific skills related to defense and ball reception.
