Statistical analyses of the data were performed using the Statistical Package for the Social Sciences SPSS version 11.5 programme SPSS Inc., Chicago, IL, USA.
El análisis estadístico de los datos se hizo usando el programa Statistical Package for Social Sciences SPSS versión 11.5 SPSS Inc., Chicago, IL, EE. UU..
Foi feita com o programa Statistical Package for Social Sciences SPSS versão 11.5 SPSS Inc., Chicago, IL, EUA.