Calculations were made using the SPSS for the Windows version 10.0 software program SPSS, Inc., Chicago, IL.
Se efectuaron los cálculos por programa SPSS para Windows, versión 10.0 SPSS, Inc., Chicago, IL.
Os cálculos foram efetuados por programa SPSS para Windows, versão 10.0 SPSS, Inc., Chicago, IL.