Hello,
It should work with "Show full statistics" checked. We've passed Primeiro Simulado quiz on your site and able to see the statistics.
If you mean text template is not showing you need to indicate appropriate text templates in "Text Templates" section. As ARI Quiz help states (Components->ARI Quiz->Help) while editing/adding quiz you can define a text template to show a user after successful completion of quiz. If not defined, nothing will be shown to the user after the completion.
If you still experience problems please provide us with access to your Joomla! system and we will investigate. Please send the credentials via email:
info@ari-soft.com
Regards,
ARI Soft