Yes! This can be done by using Automation. So rather than display the default result box, you can set a module to display instead. For example a More Information box can display that reads 'Thank you for completing our poll'.
Add your Poll module.
Click on a specific answer in the poll, followed by the automation icon (the little wand).
Select 'When this answer is clicked', followed by the action you would like to take, for example, activate a More Information pop-up box.
Example:
We would like the reader to see a thank you message when they select the answer 'Love it!' in a poll.
Add a poll module with the answers available to select.
Add a More Information module containing thank you message off page.
Select 'Love it' answer for the poll, followed by the automation icon.
Select 'When this answer is clicked' for Event.
Select 'Activate Interactivity' for Action.
Select the module that you wish to activate when the answer is clicked for Interactivity.