It was used the Statistical Package for Social Science SPSS, version 20.0 and Rstudio 0.98.501 software.
Se utilizaron los softwaresStatistical Package for Social Science SPSS, versión 20.0 y Rstudio 0.98.501.
Utilizaram-se os softwares Statistical Package for Social Science SPSS, versão 20.0 e Rstudio 0.98.501.