Data were stored in an electronic spreadsheet and descriptive analysis was carried out using the Statistical Package for the Social Sciences SPSS version 15.0.
En el análisis descriptivo, los cálculos fueron realizados con el auxilio del aplicativo estadístico Statistical Package for Social Sciences SPSS versión 15.0.
Na análise descritiva, os cálculos foram realizados com o auxílio do aplicativo estatístico Statistical Package for the Social Sciences SPSS versão 15.0.